Mourinho insists it is still City's Premier League title to lose.
Kompany, however, has laughed off Mourinho's claims and says he's not bothered by what opposition managers have to say.
"It's very simple in football, the winner is always right and the loser is always wrong," Kompany told Sky Sports.
"Unless a manager puts on his football boots and starts playing as a striker, I'm never really worried about what they can say.
"Arsenal will probably get the momentum back again when they win again, so it's a good league for the neutrals. I think it will be tight until the end."
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