Wenger admits he was initially "reluctant" to pursue a deal for Flamini back but the 29-year-old's form on the training ground changed his mind.
"I must say I was reluctant to sign him again but he was so honest in his statement that he wants to play the kind of football we play, that he wants to help us to win. He convinced me through his attitude and his desire in training that he will be the right signing for us.
"It was his attitude. He could have gone somewhere else. He had offers but he wanted to put it right with this club and I think he felt somewhere that he had something to bring to the piece here. He was determined to do that."
For the big stories and the banter follow us on Twitter: @tribalfootball