Addicted to Beach Volleyball here in rio. Nightly news begins right now. This is nbc nightly news with lester holt reporting from the summer games in rio. Good evening, as athletes from around the world play for gold and National Pride in these Olympic Games, the humiliating defeat has been suffered by russias the entire team banned from competing in rio. Its the latest shoe to drop that has tarnished its athletes just weeks before the start of the paralympic games. Miguel almaguer has details from olympiapark. Hoisted in Olympic Village under a cloud of controversy. It will not fly here games start. The National Olympic committee did what the committee would not. Banning the entire russian delegation after allegations of doping. The unprecedented move means all 267 athletes cannot compete in september. I believe the russian government has catastrophically failed its paraathletes. Their medals o disgusts me. It violates everybodys innate sense of justice to paint every Single Person in russia, every Single Person on the team with a a broad brush. It violates every standard of justice. Unlike the olympics, the International Paralympic committee has more troll and overe sees ten of its sports. Russian fans on the political move. Tonight in rio, the russians have already taken the podium. But the Paralympic Team will not have the same chance. Tonight the russian delegation says they will appeal tonights decision. Officials here have criticized the severity of the ban saying its unjust and uncalled for. Lester . M on day two of the competition, a big night coming up for team usa with an olympic swimming record broken today and u. S. Athletes win an impressive number of medals so far. There was Something Else here today no one quite anticipated. Stephanie gosk has more. For some of the athlete, the toughest competition actually came from the weather. The wind caused problems all across the city causing howling gusts as strong as 35 miles an hour torn the venues and ripped off banners including a mural. High winds forced officials to close an olympic store and an athletes cafeteria for safety reasons. Canoe salom was delayed. Serena williams easily won her match. Well probably see a lot of that on very blustery day. Rain in the afternoon may have contributed to this crash. A dutch cyclist flipped off the road. She suffered minor fractures to her spine. The best place to be by far was inside where an olympic record was broken in the 400 meter freestyle qualifier. Shes back in the pool tonight swimming for a medal. I feel like i have a handle on how i want chase kay lesh won silver. How do you feel in the final lap . It hurts a lot. The 400 im used to belong to Michael Phelps and ryan lochte, but the torch has been passed. Those guys have always been my idols. They succeeded in my best event and i always wanted to be like those guys. Gymnasts started with simone competition. While a french gymnast posted a message from the hospital after breaking his leg. Proudly showing off his countrys colors. On the beach saturday gold hopefuls Kerri Walsh Jennings and april ross pulled out their first match. We set the tone. Now we have to keep it up. A slightly overdressed secretary of state john kerry joined in on the beach fun earlier in the won that match. A bit more seriously, an update on the security situation, theres been two incidents. One was a detonation of a suspicious package that turned out to be nothing and two australian coaches were robbed at knife point. They are both fine, but Officials Say things are so far going smoothly. Thank you very much. Rio is not the only place where sports headlines are being made. In the u. S. , Alex Rodriguez his retirement from the yankees. Ron mott with that story for us tonight. Reporter tonight after a long run of big hits and even bigger strikes. This is a tough day. I love this game, and i love this team. And today im saying goodbye to both. Reporter Alex Rodriguez is finally out for good. I never thought i can play for 22 years. At 18 i just wanted to make the team. Reporter fighting through tears the 41yearold said his last game is friday. Hes a good player, but its his time. Reporter rodriguez has been a lightning rod for headlines. Great fanfare in the early years, losing what was the biggest contract of the sports history. For the record, have you ever used steroids, Human Growth Hormone performance enhancing substance . No. Reporter before steroid denials, thenned a an mission and a suspension turned the hall of famer sbo one of the most divisive figures. In between it all, all the trappings of celebrity, including cameron diaz and madonna. He will be looked at as a polarizing figure. He will always be tainted and always be looked upon as one of reporter rodriguez and the yankees have had an off again on again love affair. Now a divorce of sorts. Hes off the field but will stay on as an advising to players. Hopefully someone who tripped and fell a lot, but someone who kept getting up. A career with a storybook ending coming to a disappointing end. New National Poll providing fresh evidence of how the most recent controversies involving donald trump do not sit well with many voters and have put him further behind Hillary Clinton. Halle jackson reports on how the Trump Campaign plans to control the damage. Reporter a trump slump solidified tonight. New numbers show Hillary Clinton up 8 points nationally with just under twothirds of voters saying she has the right temperament and twothirds think donald trump does not. Fresh evidence of fallout from one of his worst weeks yet. I think hes gotten the messages. Hes focused. He know what is he needs to do. Im confident hes going to start doing it. Trump allies suggest hell get on script even after days attacking a gold star family, something 3 of 4 americans say they disapproved of, including most republicans. The candidate consistent in his ability to court want to see him talk about. Jobs, the economy, strong foreign policy. If he can do more of that and less of picking fighting with people, he can get back in the game. Trump insiders say he will also focus on clinton. This weekend taking aim at her response on how shes answered questions about her email troers. I may have short circuited and will try short circuit in the brain and shes got problems. 60 of voters say clintons not honest and trustworthy with senator tim kaine forced to defend her emails again. She said its a mistake. I know this is something shes learned from and were going to be real transparent, absolutely. Clinton will be in florida tomorrow as trump heads to michigan hoping to flip it red. Climb. His economic speech there part of his campaigns reset as his team hopes to kick start a rebound. Lester . Halle jackson, thank you. There are still many Unanswered Questions in chicago, two days after police reveesed a series of videos showing officers shooting at and apprehending a suspect who was killed. The Police Superintendent responded this weekend and so did people in reporter scattered peaceful protests and demonstrations across chicago this weekend. We do not need white officers policing the black community. Reporter outrage by the shooting of unarmed paul oneill, who was fleeing police in a stolen vehicle. A lot of people are upset by what they saw and quite honestly they have a right to be upset. Reporter the Police Superintendent speaking out for the first time. I was concerned by some of the things that i saw in the we took such swift action. Reporter unpress dented swift action. While the department acted quickly in releasing the video, several officers appear to fire in the direction of each other and a police suv while shooting at oneill. The moments before the shooting and after caught on video. The officer who fired that fatal shot turned on his camera after he fired. Police say what happened to that camera is being investigated. I dont believe that story. I think we need to investigate more. Reporter activists and protesters unsatisfied. The three officers involved in the shooting were immediately stripped of their powers pending an investigation. Theres a small protest that started minutes ago. Its been peaceful so far. Lester . All right, thank you. In the middle east tonight, there are reports that rebel groups in syria have made progress in thundershower counteroffensive in aleppo where thousands have been cut off by a government siege. This has been especially heroing for the children of aleppo. But a place that gives them a welcome break. Playing, what kids do best. Im with friends and we have fun together this 8yearold says. It may look like any other place kids play, but this is aleppo where war has raged for more than five years. A third of the victims are thir children. Nowhere safe forid until parents and activists came up with an underground play area in a building basement far from the impact of bombs and gunfire. More than 250 boys and girls come here to gaher and play for four hours a day, six days a week. I like coming here, this 10yearold says. The center also teaches reading, writing and computer skills, a huge help are targets. Save the children estimates that 1 in 4 have been attacked. Education has taken such a huge hit for the syrian children. Its basically impossible. Behind. Behind the happy faces is also sadness. This 6yearold says her older sister was killed in the fighting. They buried here, she says. I wont forget her. I still have her picture. This house was hit by an airstrike. I says. The fighting has intensified in the past week, yet organizers say they will do everything to keep the center open so these children can keep smiling. Nbc news, london. Still ahead, were going to meet the fencer making history by staying true to her believes. And in the u. S. , a a million and a half and in the u. S. , a a million and a half people u take a look at these bbq trophies best cracked pepper sauce. You got any trophies, cowboy . . Whoomp there it is . Uh, yeah. Well, uh, well theres this one. Best insurance mobile app . Yeah, two years in a row. Well ill be. Does that thing just follow you around . Like a little puppy the awardwinning geico app. Download it today. If youre taking multiple medications, does your mouth often feel dry . But it can also lead to tooth decay and bad breath. Thats why theres biotene, available as an oral rinse, toothpaste, spray or gel. Biotene can provide soothing relief and it helps keep your mouth healthy too. 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Clean gets tough on stuckon stuff cleans kitchens in a minute. Mr. Clean will clean your whole house and every room thats in it. Mr. Clean, mr. Clean, mr. Clean were back from rio looking at the olympic cauldron burning. The a promising Young American who tomorrow will compete in her event wearing the traditional covering worn by some muslim women. Beyond competing herself, shes become a coach and an inspiration. Morgan has her story at this summers games. Shes the First American athlete to ever compete in the olympics wearing a hijab. Its a part of who i am. My faith comes first. Reporter she grew up in new jersey, the daughter of eugene and denise mohammed. She caught a glimpse of her future from her moms car window. I see these kids with these masks on. I said i dont know reporter it was the only sport she could stay completely covered. She trained at a fencing club in new york city. Its where she coaches today. She is an absolute role model for the children, for our organization, for islamic people, for all americans all over the world. If she can do it, maybe i can. This is our fencing forward, another step forward and then i lung. Now you do the same. I go one, two, lung. Reporter while she suits up for the red, white and blue, shes faced with the painful reminder that dont think the stars and stripes belong to her. I was walking from practice and this man followed me and made me feel very uncomfortable. Said that i look suspicious and that he was going to call the going to blow something up. Reporter while her religion requires her to be covered, she does it with Style Running a clothing line where modesty meets fashion. I still get overwhelmed when i think about the magnitude of what shes established. Reporter now the world has taken notice. I told her to bring home the gold. Reporter e ready to represent team usa. Country. Where would we go back to . Reporter this is her home, she says. 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Beach volleyball, beaches of hawaii and california, was adopted by rio as its own and is now firmly woven into the fabric of this sportsobsessed nation. Its really a sport. My father used to play Beach Volleyball at the 60s and i learned to play with him. Brazil has combined one more olympic medals in both volleyball disciplines than any other nation. Whats it like to look over there and see the olympic Beach Volleyball righter its great. We have always wanted to see the Olympic Games near us because its always very far from here. Reporter while the competition is fierce inside this stadium, just a few hundred yards away, its welcoming and even playful. We like to come to the beach and meet our friends. This beachs most famous past time now venues. And everyone on the beach is invited to dig in and celebrate. Id like to tell you all the shots were that good, but unfortunately theres videotape. Thats going to do it for us on a sunday night. Im lester holt. Olympic coverage starlets at 7 00, 6 00 central. Womens gymnastics and swimming. For all of us at nbc. No one has won more. The most dominant in olympic history and its pure gold. . . . . On a sunday night in brazil stars take to the rio stage, each at different stages of their olympic stories. Shes arrived with the greatest of expectations, soaring into the spotlight with a rare blend of talent, poise and personality