O’Hara says Guardiola must apologize to the club and his players for their 1-0 defeat at the hands of Chelsea on Saturday.
Guardiola has been known for naming audacious lineups in big games, but much of his formational tweaks was not seen in the 2020/2021 Champions League campaign.
Manchester City were tipped to complete the treble by beating Chelsea to their first Champions League trophy but that could not come to fruition and O’Hara has blamed Guardiola for the Citizens’ failure.
The former Barcelona and Bayern Munich manager shocked the world on Saturday when he fielded six attacking midfielders against the Blues.
O’Hara believes failure to start the game with a defensive midfielder cost Manchester City and insists Chelsea could have been home and dry if not for Timo Werner’s profligacy.
“It’s one of the worst performances I’ve seen from Manchester City in a long time,” said O’Hara on talkSPORT.
“Bottle jobs. And an absolute disaster of a team selection from Pep Guardiola.
“I cannot believe he got it so wrong in such a big moment… with no holding midfielder. If Timo Werner could shoot, it would have been 3-0 at half-time. They [Chelsea] were all over them.
“I couldn’t believe what I was watching. It was a disgrace from Pep Guardiola.”
“Guardiola’s arrogance at half-time to not hold his hands up and say, ‘I’ve got this wrong, we’re still in the game, I need to bring Fernandinho on now and get it sorted’,” added the 34-year-old.
“He waited until the 64th minute to change it and then they were in control, but you can’t break down this Chelsea team in half an hour. You need a longer period of time. It was too little, too late.
“Pep Guardiola should go and apologize to every single player because he’s the one that’s cost them the Champions League.”