Alonso will take over for December but I'm not in favour of trying Callum there. Callum has found his groove as an attacker and is starting ahead of Pulisic, Werner on merit. It has to be Saul or Azpi to cover Alonso for December before we take a call on Maatsen, Emerson or signing someone.
Spinazzola in the summer would have been an ideal fix here before his own injury.