Novak Djokovic shakes off a back problem and reaches the 4th round of the US Open at 38

Read Novak Djokovic shakes off a back problem and reaches the 4th round of the US Open at 38 on 92.5 FOX News App

Novak Djokovic shakes off a back problem and reaches the 4th round of the US Open at 38

Novak Djokovic shook off a back problem early in the match to beat Cam Norrie on Friday night and at 38 become the oldest man to reach the fourth round