Belgian expands endorsement portfolio.
Champions thrill sold-out Copenhagen crowd.
The tennis legend talks about what it was like to open herself up to the camera at a pivotal time in her life.
Stars respond to fans' fantasies, including a shirtless Grigor Dimitrov serving crepes.
In a tennis version of Avengers, Toni Nadal would join Novak Djokovic's team.
Federer teaches, dances, plays soccer and meets the president.
Former No. 1 to play Estoril with Alex de Minaur next week.
