Pep Guardiola said that Jack Grealish's goal early in the second half changed his mind about using Manchester City substitutions against West Ham.
The Blues went in at the break 2-0 after a wretched 45 minutes that saw their defence horribly exposed through the pace of Jarrod Bowen and the guile of Michail Antonio. A response was sorely needed, and despite sending the same XI out for the second half the manager was planning a change as he looked to bring Ilkay Gundogan into the game.
However, Grealish scored in the 49th minute that spurred the visitors on and changed the atmosphere in a stadium that had been buoyant as they bid an emotional farewell to Mark Noble. City pushed on and, without using any substitutes over the course of 90 minutes, grabbed an equaliser and also earned a penalty that would have won them the game had Riyad Mahrez not seen his effort saved.