But if they didn't have him, then they would play different football. It is impossible for you to say that he single handedly won these games, as if he wasn't there then the game would of been different and they might even score more.
It's like saying Fellaini has single handedly won everton about 9 points. He hasn't. If he wasn't there, then they would playing different football with a different man.
Erm, no.
If Gareth Bale scores the only goal in the 80th minute in a 1-0 victory after a poor Spurs performance, then he single handedly won them that game. What could have happened if he wasn't playing is totally irrelevant.