As Pep Guardiola's side prepares to take on the record Champions League winners at the Santiago Bernabeu, they have had three defenders sit out training on Monday morning, in the form of Josko Gvardiol, Nathan Ake and Kyle Walker as per the BBC's Simon Stone. The latter two were already doubts for the Madrid clash after their specific issues during the international break, however, Gvadiol was the newest addition to the list after he was hooked off during Man City's 4-2 win over Crystal Palace on the weekend.