Wimbledon officials on Monday attributed a significant error in the tournaments electronic line-calling system to a human mistake.
They extended their apologies to Anastasia Pavlyuchenkova and Sonay Kartal following the technical malfunction during their fourth-round match on Centre Court on Sunday, which Pavlyuchenkova won in straight sets.
After conducting an inquiry, organisers admitted that the technology had been mistakenly turned off for a portion of the court during a game, with the error only becoming evident when a shot from Britain's Kartal, which missed the baseline, was not judged out.
If the call had been accurate, it would have given Russias Pavlyuchenkova a 5-4 advantage in the first set however, umpire Nico Helwerth ruled that the point should be replayed, ultimately allowing Kartal to win the game.
Wimbledon released a statement on Sunday indicating that the system had been deactivated in error for one game by those monitoring the system.