City suffered their first defeat at home in the Absa Premiership after losing 4-1 to Kaizer Chiefs on Saturrday.
The Citizens played the last 20 odd minutes or so with ten men after defender Taariq Fielies got red carded for a second bookable offence.
“It was a massive setback for us when we were down to ten players. But what can I say we’ve done everything we possibly could,” McCarthy told SuperSport TV.
“Tactically we were organised, we were a better team. We started slowly and allowed them into the game. I think after we got the jitters out of ourselves then we started playing the football we know we can.
“But when you’re playing against a Kaizer Chiefs team and their best player is the referee then you know you’ve got no chance.
“I know the league [PSL DC] is going to come for me but they are more than welcome. I don’t know how many times this is going to happen before we do something about it. How do you explain to the players what has gone wrong because I don’t think tactically we were that bad.
“Your team gets cautioned for everything and no matter what fouls and how they [Chiefs] kick your team they only get a talking to. I’m just a bit fed up not because we got hammered 4-1 it’s bad enough but ja I have to pick my boys up because we’ve got another tough one coming on Wednesday against Pirates,” he said.