Novak Djokovic quickly recovering from a lower back problem to end British singles interest at the US Open as he blasted his way past Cameron Norrie 6-4 6-7 (4-7) 6-2 6-3 to reach the fourth round.
Raymond van Barneveld is among those through to the second round of the Flanders Darts Trophy, but England's Michael Smith suffered a shock first-round exit.