Cameron Norrie battles past Comesaña at US Open to set up Djokovic clash

• Briton defeats Argentinian opponent in four tough sets

• Novak Djokovic also takes four sets to beat Zach Svajda

Cameron Norrie continued his fine grand slam form by holding his nerve at the end of a bruising battle with Francisco Comesana to win 7-6 (5), 6-3, 6-7 (0) 7-6 (4) and set up a thirdround match with Novak Djokovic.

Norrie, who reached the fourth round of the French Open and quarter-finals at Wimbledon this year, had looked well on his way to victory as he established a two-set lead. However, as he edged close to winning, his nerves increasingly came to the surface.