The Russian forward made a brief appearance in the Gunners’ 1-0 win against QPR at the weekend, but there was no mistake that his introduction lifted his side in what was largely a dull encounter.
Speculation surfaced in the summer over the forward’s future at the club, together with reports of the Russian’s apparent unprofessional attitude.
Wenger, however, has said that the perception is unfair, and that he has never doubted the forward’s commitment.
“[Arshavin’s attitude] has been questioned and I don’t tolerate it,” Wenger told Arsenal TV.
“He comes in every day and practices well, he’s focussed and wants to do well. I insist on that because it was questioned and was completely unjustified.”
Arsenal travel to Reading on Tuesday night in the Capital One Cup and Wenger insists Arshavin will play a prominent role in the match after showing his capabilities is his cameo appearance against QPR.
“It was short but efficient appearance. Andrey is a classy player and he will play tomorrow night,” said the Frenchman.
“Of course, the competition is open for everyone and Andrey is classy. He has a fantastic attitude and is a top professional and when he came on you could see his brightness and intelligence on the ball, it’s fantastic.”
Wenger recently admitted the Capital One Cup was the least of his priorities compared to the Premier League and the Champions League, but the manager insisted the team will still battle and aim to progress further into the competition.
“It doesn’t mean that you neglect them, just because you have other priorities.
“It doesn’t mean they are not important. What we try to do is to fight as hard as we can in all five [competitions] for as long as we can, and if you have to make a choice [between them] you make it as late as possible.”
A win at the Madejski on Tuesday evening will make it 10 consecutive League Cup quarter-final appearances for the Gunners, and Wenger believes the record demonstrates the pedigree of young talent the club has been famed for over the past decade.
“Of course [we are proud of the achievement], because we have always played with young sides and it shows we have been highly focussed on it every time.”