Arsene Wenger has been blasted for his treatment of Wojciech Szczesny by the young goalkeeper’s father.
Maciej Szczesny has told Polish newspaper Przeglad Sportowy that the Arsenal manager is to blame for the 22-year-old’s poor from by making him play through injury.
Wenger dropped Szczesny for last week’s Champions League last 16 second leg against Bayern Munich, which Arsenal went on the win 2-0.
The Emirates Stadium cited Szczesny had been mentally affected by the amount of games he had been playing and needed a rest.
However, Maciej believes Wenger caused the problems for himself by making playing the Poland international play when he was injured late last season.
"Wenger already started to look for the scapegoat. It is not the way the boss should behave,” said Szczesny, a former Poland international himself.
“Wojciech has had two serious injuries. He played with one in April and May (last year). He shouldn't have agreed to play that time, but the coach insisted.
"Wojciech did not train the whole week and then a warm up on Friday and played the match on Saturday.
“He was naturally more susceptible to minor injuries and his form was going down.
“In my opinion Mr Wenger messed up a lot in April and May. I don't blame the young man who went along with his coach, his current lack of form is a result of those two months.”
Szczesny Snr accused Wenger of being reckless with the young Arsenal number one’s health, while calling his son “foolish” for agreeing to play.
He also revealed how the Gunners had forced Wojciech back to quickly after an injury this season.
“Wenger was playing with the young man's good health and Wojciech agreed foolishly,” he added.
“Then in August there was a foot injury after which he played almost instantly.
“After seven weeks out Wojciech trained for just seven days and played the match. How on earth can he be on his highest form?”
Lukasz Fabianksi was brought in to replace Szczesny for the Bayern Munich game and kept his place for the trip to Swansea City three days later.
The elder Pole was making his first Premier League appearance in nearly two years, keeping a clean sheet in another solid display and Arsenal win.