Mikel Arteta loses another important Arsenal staff member as backroom exodus continues following injury-hit season

MIKEL ARTETA has lost another influential member of his backroom staff following their league-winning campaign. Tom Allen, Arsenal’s head of sports science and performance, has left the club after nine years. The former Aston Villa practitioner is considered an important member of Arteta’s team, overseeing sports science, physical output, nutrition and performance. But Allen has…