Wimbledon’s much-discussed transition to a fully automated line-calling system faced fresh scrutiny on Tuesday after a glitch forced a point to be replayed during the quarterfinal clash between Taylor Fritz and Karen Khachanov.

The incident unfolded early in the fourth set on Court No. 1, with Fritz serving at 15-0. Following a brief rally, an unexpected sound rang out, what resembled a 'fault' call, prompting chair umpire Louise Azemar-Engzell to halt proceedings.

After a short consultation and visible confusion among players and spectators alike, Azemar-Engzell informed Fritz and Khachanov that the previous point would have to be replayed due to a technical malfunction in the electronic line-calling system. The All England Club later confirmed it was investigating the mishap to determine the exact cause.