Overview

• Shelton stopped after the fourth set with the match level at two sets each, recorded as 3-6, 6-3, 4-6, 6-4, ret., after three hours and seven minutes on Louis Armstrong Stadium.
• The 22-year-old took a medical timeout early in the fourth set for sharp pain in his left shoulder and told his box it was the worst pain he had ever felt.
• The trouble followed a heavy landing late in the third set, after which Shelton sliced forehands and rushed the net to avoid topspin before conceding.
• Shelton left the court in tears after conferring with his father and coach, Bryan Shelton, while Mannarino expressed sympathy and said Shelton had been leading and likely would have won.
• Mannarino, 37, moves on to face No. 20 seed Jiri Lehecka, as Shelton’s withdrawal halts a strong season that included a maiden Masters 1000 title and leaves his recovery timetable unclear.