Grigor Dimitrov starts the new year with a new coach.
The Frenchman is not in a good place at the moment.
2016 AO champion Angelique Kerber falls in first round to Bernarda Pera.
Milos Raonic reveals why this is one of the toughest times to be a pro player.
Serena Williams opens AO with powerful win and high praise for Bucs QB, while Milos Raonic shares his inspiration.
"Today I am still hoping to keep improving and hope to be ready for it," Rafael Nadal said of the back pain that forced him out of ATP Cup..
World No. 1 opens up on how he copes with the pressures of defending a Grand Slam crown.
