El Tel wrote in The Sun: "No manager ever wants to lose a game, especially a derby. But this fixture is a must-win for Mancini.
"I know it seems ridiculous given his second-placed side are unbeaten in the Prem and will replace United as leaders if they win tomorrow.
"But after City's embarrassing Euro exit, Mancini badly needs three points to keep his team in the title race, the club's fans and owners onside and possibly his job. Even more so as Jose Mourinho looks set to join Pep Guardiola in the dole queue for out-of-work Champions League-winning managers looking for a job this summer."