I think the word is overused, but today, it isn't. Viktor choked serving for the set and being 40-0 up. He got tight, Nole did raise his level but Viktor didn't play the tennis that got him to that point. Very unfortunate, as he was playing excellent tennis up to that point, serving big, hitting out on the ball and coming to the net well. Nole just hung in there and his confidence, experience and competitiveness got him out of a tough situation. It was a good match, pretty expected in terms of how everything played out and the result. Nole into another final in Basel.
Almost by definition.
Troicki is a good server and 40-0 on your serve indoors means you should be able to find an ace or service winner unless your serve fails to deliver on one of the 3 points. Certainly should not lose 5 serve points in a row.