Novak's US Open title defence came to a halt on Sunday when the Serb retired from his fourth-round match against Stan Wawrinka. The Swiss led, 6-4, 7-5, 2-1, when the top seed stopped due to a left shoulder injury. They were facing off for the first time since the 2016 US Open final.
The main singles draw for the last Grand Slam tournament in 2019 has been made on Thursday. No.1 seed and defending champion will open campaign in his 14th US Open appearance against Roberto Caraballes Baena from Spain (ATP #76).
Defending champion advanced into the last 16 at the Western & Southern Open on Tuesday, following a 7-5, 6-1 win over world no.45 Sam Querrey. The match lasted one hour and 18 minutes.
Novak is no.1 seed and has a first round BYE. He will open his title defence campaign against Sam Querrey (USA, ATP #45). The Serbian star claimed the historic crown in 2018 to become the first singles player to achieve Career Golden Masters.