Mesut Ozil scored one and set up another for Arsenal against Bournemouth

Mesut Ozil is heading Arsenal's title challenge after developing into a "leader" at the club, Arsene Wenger says.

Ozil continued his assault on the Premier League assists record with his 16th of the season against Bournemouth, while his fifth goal capped Arsenal's return to the top.

And Wenger believes his record signing has reached a stage in his career where he is determined to make a difference every week.

"When he was injured for a long period he worked very hard physically," Wenger said. "He is a complete athlete.

"I also believe he has grown in stature and takes responsibilities, leadership in the team and on that front he has improved tremendously and looks determined to lead the team compared to when he arrived.

Arsene Wenger won't confirm if Mohamed Elneny is about to join the club Arsene Wenger won't confirm if Mohamed Elneny is about to join the club

"I think he plays in a position that suits him well. He plays in a style of football that suits him well.

"This season he was not stopped by injuries and I believe that he arrives at an age - 27 - that you think, 'it's time for me to really be efficient in every single game, and I want to enjoy every single game'."