Just in arsenal extends arsenes contract

I think there may be some confusion here!

Arsenal is a football club, and they don't have a player named "just in". Additionally, "arsenes" is likely a typo and you meant to say "Arsène", which is the name of the former Arsenal manager Arsène Wenger.

Arsène Wenger was the manager of Arsenal from 1996 to 2018, and he is a legendary figure in the world of football. However, he is no longer the manager of Arsenal, and he has not extended any contract with the club.

If you meant to ask about a different player or contract extension, please feel free to clarify and I'll do my best to help!