Sky Sports pundit Redknapp was critical of Aubameyang after Arsenal’s 1-0 defeat against Manchester City on Sunday and said the striker “looks like he is going to get bullied” when he plays.
Aubameyang scored a hat-trick against Leeds recently but he has endured a difficult season since signing a new £250,000-a-week contract last summer.
Arteta has backed Aubameyang to find some form and has told him that the best way for him to respond to criticism is on the pitch.
Speaking ahead of Arsenal’s crunch Europa League clash with Benfica on Thursday, Arteta said: “I didn’t see those comments. I’ve heard about them. I’m here to support every single player and that is what I try to do all the time.
“I try to give them the best possible advice and when they have a difficult moment, stay right behind them and that’s what we try to do always.
“I think the best way to talk is always on the pitch. Seven days before when he scored the hat-trick and he could have scored four or five against Leeds, he was again the main man.
“He could have scored a hat-trick against Benfica easily with his qualities and it would have been different. At the end [of the day] it’s about putting the ball in the back of the net for him and that’s how he gets joy.”