Chelsea were without Cole Palmer for their 5-0 defeat against Arsenal last night. Not having Cole Palmer was a huge blow for Mauricio Pochettino, with the attacker being Chelsea‘s best player this season. In 27 Premier League appearances, he has scored 20 goals and provided nine assists. Palmer missed the game because of illness and Pochettino says he does not know if the 21-year-old will be back for Chelsea’s match against Aston Villa at the weekend. His absence at the Emirates last night, though, was no excuse for the Blues to lose 5-0. Mauricio Pochettino discusses Cole Palmer absence in Ch…