Organizers of this year’s Wimbledon have said the latest error with the electronic system was due to a player getting ready to serve while a ball boy was still doing their duties on court.

A malfunction with Wimbledon’s new electronic line-calling system required a point to be replayed during a quarterfinal match between Taylor Fritz and Karen Khachanov.

Organizers of this year’s Wimbledon have said a ball boy caused the latest error with the electronic system that has replaced the traditional line umpires at this year’s tournament. The incident occurred in Tuesday’s quarterfinal between American Taylor Fritz and Russian Karen Khachanov.