Sir Jim Ratcliffe wants Man United to knock Man City off their perch Jamie Carragher doesn't believe this will happen until Pep Guardiola moves on Is Bruno Fernandes good enough to make the bench for Manchester City? Listen to the It's All Kicking Off podcast Jamie Carragher believes Manchester United have no chance of toppling their bitter rivals Manchester City until Pep Guardiola leaves the Premier League. New United part-owner Sir Jim Ratcliffe announced his intention to knock City 'off their perch' last week after his £1.3bn investment in the club was officially ratified. But United are currently 15 points behind City in the table and have not finished above them since Sir Alex Ferguson retired in 2013. Carragher feels there are reasons to be optimistic at Old Trafford after Ratcliffe bought a 25 per cent stake in the club, but does not expect United to leapfrog City any time soon. 'Manchester United can forget about knocking Manchester City off their perch while Pep Guardiola remains in English football,' he wrote in his column for The Telegraph. 'United can change owners, headhunt the best chief executive and sporting director in the world, revamp their recruitment department, rebuild Old Trafford and appoint their best manager since Sir Alex Ferguson. It doesn’t matter. So long as Guardiola is around, City will lose no sleep. New part-owner Sir Jim Ratcliffe wants Man United to knock Man City off their perch Carragher feels Erik ten Hag's side will not be able to go toe-to-toe with City this weekend He expects the Red Devils to approach Sunday's clash very differently, as he is adamant that United are not capable of going toe-to-toe with City right now. Assessing United's chances, Carragher continued: 'They can win the game, but only by playing underdog football with men sitting deep behind the ball and hoping to counter-attack. 'Nine times out 10 that is not good enough against a team of City’s ability. There is always a chance in a one-off game the strategy will work. It will need a shock result. 'United fans heading to the Etihad with trepidation understand that situation is unacceptable and the team can only truly be said to be heading in the right direction when they are capable of going toe-to-toe with title challengers, imposing front-footed football. They remain miles away from that.'