Former Arsenal attacker Theo Walcott has joined Mikel Arteta’s squad on their pre-season tour in the USA, and fans are loving it. Walcott scored 108 goals in 11 years at Arsenal, winning three FA Cups, and scored some iconic strikes which live long in the memory. Arsenal fans in Los Angeles were treated to a 2-1 victory over old rivals Manchester United in their pre-season friendly at the SoFi Stadium. Goals from Gabriel Jesus and Gabriel Martinelli handed Arteta’s side a victory over one of Arsenal’s biggest historical rivals. Walcott also delighted the fans by helping them remember one of th…