Stan Wawrinka was leading match 6-4, 7-5, 2-1 Serbian world No 1 suffering with shoulder complaint
Novak Djokovic was cruelly booed off the court at Arthur Ashe Stadium after a sore left shoulder forced his stunning retirement from Sunday night’s fourth-round match with Stan Wawrinka at the US Open.
The top seed and defending champion was trailing 6-4, 7-5, 2-1 after being comprehensively outplayed by the 23rd-seeded Wawrinka when he informed his opponent then chair umpire Nico Helwerth he could no longer continue, prompting a cascade of jeers from the nearly full 23,771-seat arena and leaving the world No 1 to raise a thumbs-up to the gallery as he hauled his equipment bags into the tunnel.