OLE GUNNAR SOLSKJAER has vowed to bridge the gap between the red and blue half of Manchester – and is determined to knock Liverpool off their perch again too. Manchester United have fallen way behind their big rivals in the six years since Sir Alex Ferguson retired. But Solskjaer said: “As a club, the size of our club, we’re going to have to bridge that gap and our aim is to go past the teams above us. “I believe at Man Utd that’s what we have to aim for, that’s what we have to go for and that’s what we have to believe in because we do have the resources and the people to do it, so why not? “What are you going to do? Are you going to give up? Not challenge them? That’s what we’ve got to get back to.” Liverpool are racing towards their first title in 30 years.City have won four in seven years, three of them since Ferguson retired in 2013, including that domestic Treble last season. Yet, ahead of today’s Manchester derby at the Etihad, Solskjaer was quick to point out that there was a time when City and United did not even play…