After surviving a tough match against Alex De Minaur in the fourth round at Wimbledon, Novak Djokovic had a funny reason why Monday's win meant more to him.

Roger Federer had a front row seat to watch Novak Djokovic come back in his Round of 16 Wimbledon match vs. Alex de Minaur on Monday afternoon. Djokovic advances to his 16th Wimbledon quarterfinals with the win.

Djokovic's record-breaking 10 Australian Open titles has helped him reach 99 match wins on the hard courts of Melbourne while he may need two or three more appearances at the US Open, where he's reigned on four occasions, to reach three figures as he currently stands on 90.