The presenter at the center of Novak Djokovic’s decision to boycott on-court interviews at the Australian Open has apologized to the 24-time Grand Slam champion, saying that he “overstepped the mark.” Channel 9 presenter Tony Jones was overlooking a group of Serbian fans while recording a dispatch from Melbourne Park Friday night.

The host broadcaster has apologized after Novak Djokovic declined to do a customary post-match on court interview at the Australian Open Sunday to protest comments made on air by someone who works for the TV network.

The 24-time Grand Slam champion opted out of a traditional on-court interview Sunday following his fourth-round win over Czechia’s Jiri Lehecka at the Australian Open, citing “insulting and offensive comments” made toward him by a presenter for Channel 9, which broadcasts the tournament, days prior.