Andy Murray defeated a seemingly poor Xavier Malisse at Wimbledon yesterday despite some confusion over one particular serve.

‘I had no idea what was going on,’ said Murray. He had slammed an ace down the middle of the court, and started to moved towards the net, but Malisse raised his hand. Malisse wanted to challenge the call with the Hawk-Eye ball-tracking system, and yet umpire Lars Graff thought that the wild card was indicating that he had not been ready to receive. So Graff did not react, Malisse sat on his racket thinking there was a gremlin in the Hawk-Eye computer.

After the confusion had cleared, Murray went on to score another decisive straight-set victory over his opponent. He will met Tommy Haase, once ranked World No. 2 and a very difficult game lies ahead.

Murray's serve was the decider in this one-sided match, sometimes reaching 136mph.