It's been suggested Wilshere needs to rethink his approach so to avoid injury.
Wenger, ahead of their Europa League opener with FC Koln, declared: "I don't give the team away.
"I believe Jack needs to continue with the spirit he works and plays with.
"There was always a huge pressure on him to come back as quickly as possible. He is getting stronger and stronger every day.
"He was a bit behind the other players.
"Every game is an opportunity for him and this season."