Novak Djokovic is looking anything but his age at the U.S. Open.
The 38-year-old tennis legend is off to the semifinals at Flushing Meadows after he took down top American and ATP world No. 4 Taylor Fritz in four sets (6–3, 7–5, 3–6, 6–4). The U.S. Open run marks Djokovic's 53rd semifinal appearance in a major, the most by any player in the Open Era according to ESPN.
