Pep Guardiola has admitted he started a player who wasn’t fully fit against Liverpool and he’s now injured. Manchester City have enjoyed a rare mid-week off from action with no Champions League football to contend with until they take on Real Madrid next month. That has given a tiring squad a much-needed break, especially with injuries beginning to mount up once again. Jack Grealish remains sidelined with a groin problem that has troubled him over the last month while Ederson joined him in the treatment room after suffering a thigh injury against Liverpool. The Brazilian wasn’t the only casual…