Watch the fifth seed curl a full-stretch forehand winner down the line at Queen's Club.
Who hit the more sublime one-hander on Tuesday? You be the judge.
"[Sock] certainly has the tools [to be one of the best]," says former world No. 1, who will partner Mardy Fish in the doubles draw of the Atlanta Open next month.
Roger Federer struggled with slippery grass on Monday in Halle, but he was in complete balance on this behind-the-back beauty.
The Tower of Tandil will undergo a third surgery to his left wrist next Thursday in the U.S.
Imagine taking a school field trip to London where Rafa shows up as substitute teacher.
Watch video tribute to 2002 Wimbledon winner in advance of his farewell to SW19.
