I think the club wanting him on loan may be Valencia. Some people reported that Barca were interested which may be the case if they see him as a cost effective replacement for Turan.OK.
Mata wants to stay at Man Utd and be part of the 'project' there. Mourinho has already had two meetings with him. Mourinho doesn't want him and wants to consider offers from abroad. They've had two offers from Spain, one being for a season long loan but Mourinho wants a permanent tranfer for him. They've also had TWO English clubs approach them, one of them being us - he doesn't know the other club.
Do I believe this? No. But please don't shoot the messenger.
No idea who the other English club may be.
Maybe what Mata is deciding is at this point in his career with the World Cup 2 years away is it better to sit on Barca's bench or play a leading role with us.