Paul Merson says Arsenal must learn their from their mistakes and release striker Alexandre Lacazette at the end of the season - even if he scores 10 goals.
Lacazette's deal with the Gunners expires in June and despite manager Mikel Arteta being keen to keep him in north London, the 30-year-old is holding out for a long-term contract, having opened talks with former club Lyon.
Despite Lacazette's importance to the team at present - filling in as captain since Pierre-Emerick Aubameyang was frozen out and eventually moved on - Merson wants to see the £46.5million signing shipped out.
