Novak Djokovic delivered a commanding performance in the quarter-finals of the Australian Open on Wednesday, defeating Carlos Alcaraz 4-6, 6-4, 6-3, 6-4 to reaffirm his status as one of the top contenders in Melbourne.

Djokovic said he wants an apology from Channel 9 and Tony Jones, who called the 24-time Grand Slam champion overrated and a has-been during an on-air appearance.

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.