The Manchester United striker withdrew from the provisional 33-man squad hours before seven players were due to be cut in order to recover fully from an underlying injury, the club said.
City still needs three points from its final three games to seal a third league championship in four years under Pep Guardiola, and a fifth in 10 seasons in total.
Greenwood also revealed that he has heard the story of his manager's heroics in a thrilling Champions League final clash against Bayern Munich many times.
Everyone is starting to know how Mason Greenwood is, it will become more difficult for him: Bruno Fernandes
Bruno Fernandes said that Mason Greenwood, who scored the late winner at Old Trafford in the 2-1 win over Brighton, will keep on scoring more goals in the coming seasons.
Mason Greenwood said that the goal registered by him against Brighton will serve as a confidence booster going ahead in the Premier League.
Mason had made his senior debut as a substitute against Paris Saint-Germain, in the Champions League in March 2019.