The Spaniard is a doubt for the Manchester derby on Sunday, but Mourinho suggested that only he is telling the truth about injuries and that Pep Guardiola and Wenger aren't to be trusted.
That's what I was told. "No stories of Lacazette, David Silva - all the truth".
The France worldwide was a shock inclusion in the 3-1 defeat to the Red Devils after Wenger had categorically stated he would miss the game after limping out of the midweek victory over Huddersfield at half-time.
"I'm always honest. I thought really he wouldn't play".
It's all been fairly quiet in regards to managers having a go at each other in the Premier League lately - especially when you consider all the massive ego's now plying their trade in England's top-flight; Jose Mourinho, Pep Guardiola, Jurgen Klopp, Antonio, Mauricio Pochettino and of course the old stalwart Arsene Wenger.
Fellow Frenchman Olivier Giroud has found himself excluded from Premier League action, as has England's Theo Walcott.
"I am not here to especially blame people", Wenger added.
Defender Shkodran Mustafi would not have been involved even if he had not been forced off early on in the defeat to United. "One of the positives is that the behaviour of the squad is remarkable and impeccable".
He admitted it was hard to accept the result but believes it should make his players even hungrier.
"I will adapt every time and try to pick a balanced team".
"We are in this job to be efficient, you know".
"I believe the game, it has to make us angry and even more determined", he said. Yes, let's give it a go.