straight to your inboxNew Manchester City goalkeeper Zack Steffen thinks the introduction of new blood to the squad will give the Blues a boost heading into the new season.The USA international is one of three new faces in the squad as they prepare for next week’s trip to Wolves – and is set to make his debut in the Carabao Cup later that week.Manager Pep Guardiola is yet to address the squad, as he has been forced to self-isolate following a trip to Barcelona and has not been involved in