3. Zlatan Ibrahimovic (Manchester United, from Paris Saint-Germain for free)
Like David Luiz in making the move to England from PSG, many questioned whether he could produce the goods. A number of experts claimed that at 35-years-old he would not be able to cope with the physicality of the English top flight, but he did more than enough to prove them wrong.
Scoring 28 goals in 46 games in all competitions, Ibrahimovic has shown that he is more than capable of coping with the physical demands and has added a number of memorable moments to match, with his fine finishing and arrogance on the field seeing him become a cult hero at Old Trafford.
The Swede may only have been a short term asset given his cruciate knee injury could mean that he has already played his last game for the Red Devils, but on a free transfer he has been a valuable addition and it is hard to imagine United picking up two, possibly three, pieces of silverware without him.