Yeah, I think he can snatch five titles... Mostly indoors.
he has 1 already.
he might snatch queens so that makes 2.
so all he has left to do now is snatch 3 more: i am thinking paris indoors, WTF, and possible one other title somewhere.
depending on the draw and a few upsets, he may even snatch miami masters.
and dont forget if he can continues to progress, he may even snatch dubai.