now tim tebow is a man without a team. cut during the preseason by the new england patriots, even after two national championships and a heisman trophy. he does a great job of being professional. i think people are drawn to him. reporter: the florida native s trademark pose, tebowing, spread like wildfire across social media and late-night comedy. hey, everybody. jesus! reporter: we saw him on the covers of magazines like gq a national heartthrob. but, it was the humility so many came to love captured on abc in an interview with gma s robin roberts. talking about his mother. it s a key. what does it symbolize? i gave it to her because she was the key to my success. reporter: with espn s hannah storm, describing the moment on bended knee. a great opportunity in a public platform.