Wenger claimed the striker was not fully fit for the derby after returning from a groin problem.
But he trained every day while Bendtner, 22, was given an unofficial seven-day suspension from first-team duties.
Wenger said: "Nicklas is sometimes a bit outspoken. He is a guy who is honest and genuine.
"I will wait in the morning to pick the team but Chamakh has played a lot of games."