Who is Arsene Wenger?

Arsene Wenger is already Arsenal's longest serving manager, and now he's signed up for another two years as boss.

Wenger's been with the Gunners since 1996, and his contract was set to finish at the end of the football season.

Despite having lots of success over the last 21 years, not everything's gone to plan, and some people have said that it's time for him to go.

Leah's been looking back at his time with the team...