Danielle Collins temporarily forgot the rules of tennis in a comical moment against Iga Swiatek on Saturday. The American, while preparing to face down a serve from the Pole, seemed to be the only person inside Centre Court who did not realise she had made a mistake.

Iga Swiatek will face Danielle Collins in the third round of Wimbledon on Saturday, with the pair set to resume their bitter rivalry on Centre Court

Iga Swiatek will be out for revenge when she faces Danielle Collins at Wimbledon on Saturday, with the pair having a heated rivalry that dates back to last year