Southgates job is to win games, not to rest players for City. Walker and Stones should have both woken up and realised what was more important and said to Southgate, yeah not going to play in this friendly today boss, got a bit of a twinge. Job done. Saka did it, why didn't they?
Walker I half understand because the guy basically plays 100% of the season and always has so this injury is extremely rare.
However, Stones injures himself when he makes toast in the morning so fuck knows what he was playing at.