Rotterdam tournament director gets real on recruiting Big 3.
US Open champion continues recovery from left knee injury.
You can bid on Grand Slam silverware won by Mexico's greatest champion.
World TeamTennis returns to Chicago and Sloane Stephens leads the charge.
The 36-year-old Belgian will play in Dubai, which starts on February 17.
The event generated over $3 million for Federer's charity.
Roger reveals the day rival Rafa shed tears for him.
