Former world No. 1 makes debut coaching Elina Svitolina in Dubai.
Simona Halep headlines draw; Serena, Kerber, Wozniacki withdraw.
Klizan rows rows rows his boat, gently down the stream in Rotterdam.
Milos Raonic throws down, ever so gently, in the NBA Celebrity all-star game.
Alexander Zverev surely didn't sign up for this kind of lesson...
Milos and Eugenie will strut their stuff on a different type of hard court on Friday.
Ninja cites a trio of Wimbledon champions as tennis heroes.