Giorgio Chiellini
The 30 year old Italy and Juventus defender will be out of contract in the summer of 2015 and he can sign a pre contract with a non-Italian club in January, United and a whole host of other clubs are looking and monitoring the situation. Chiellini would be a much cheaper addition to the United squad and would provide Manchester United a lot of experience in the centre of defence.
Not only would Chiellini be an amazing seasoned professional playing for Manchester United, he is primed and known for his tackling and marking, something that most Italian defenders are extremely good at. The only problem with this deal could be his willingness to not move away from Italy but if Juve dilly dallies on his contract, United could be in the mood to swoop him up.