crossing the world s busiest shipping lane in this way and no doubt the authorities on both sides of the channel will say it reinforces their determination to try to make this route unviable. simonjones reporting. now it s time for a look at today s sport with jane dougall. let s start at the australian open, reigning women s singles champion aryna sabalenka begins the defence of her trophy against germany s ella seidel after men s number one seed novak djokovic finishes his match with croatian dino prizmic. djokovic won the first set 6 2, but 18 year old prizmic has been playing superbly. the teenager took world number one djokovic to a tie break in the second set, and won it. however, djokovic has just won the third set. italian fourth seed jannik sinner is into the second round, after he beat dutchman botic van de zandschulp in straight sets. the 22 year old, who reached his first major semi final at wimbledon last year, is one of the favourites to challenge reigning champion