Pospisil is not impressive to me. I don't see the big talent a lot of people here think he is. But I've said that several times before.
His serve needs work.
I think maybe Vasek is a bit arrogant, kind of like the Canadian Tomic, but not nearly to that extent, I do think he has some nice talent, but he doesn't always do the right thing out there on court, he doesn't always know the right shot to play or tactic to use maybe.
His serve is quite good, it doesn't need work IMO.
This loss today just shows the mental weakness that makes the rest of his game not work as well as it should.