Szczesny was axed for the Champions League game against Bayern Munich last week, with Wenger claiming the 22-year-old had been "mentally affected" by the number of games played. The Poland international was then put on the bench for the Barclays Premier League win at Swansea, where Lukasz Fabianski kept a second consecutive clean sheet.
Szczesny has joined up with the Poland squad ahead of their World Cup Group H qualifiers against Ukraine and San Marino, but Southampton keeper Artur Boruc is expected to be first choice. Maciej Szczesny - who won seven caps for Poland and helped Legia Warsaw reach the quarter-finals of the 1995-96 Champions League - said: "Wenger already started to look for the scapegoat."
In an interview with Poland's leading sport daily paper Przeglad Sportowy, Szczesny added: "It is not the way the boss should behave.
"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.
"Wenger was playing with the young man's good health and Wojciech agreed foolishly.
"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.
"Then in August there was a foot (ankle) 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?"
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