Unless your surname is Federer or Nadal, you should take all the help you can get when playing the No. 1 tennis player in the world. So, any suggestions?
With Novak Djokovic's countryman Viktor Troicki -- who entered the pair's fourth-round match with 1-11 record against the reigning Wimbledon champion -- struggling, a fan in the stands offered some advice.
According to Dan Markowitz of Tennis.com, the fan yelled "just hit an ace" as Troicki got set to serve in the third set, having already dropped the first two sets. The 26-year-old playfully offered his racquet to the fan before blasting a serve to Djokovic's backhand. Djokovic couldn't muster up a return and Troicki won the point, acknowledging the fan afterward for his advice that seemed to work.
Given Djokovic's penchant for joking around, it's possible that he even went along just for a laugh. He went on to win the match in straight sets, 6-3, 6-1, 6-3.
UPDATE: According to ESPN's video, the fan yelled "go to his backhand," which Troicki did and won the point.