So much for "player exhaustion". From AI's site:
Dubbed “Tennis Night in America”, the indoor event at Madison Square Garden will feature a unique format, with two semi-finals preceding a final on the same night. The semi-final matches will incorporate “no-ad” scoring and will be played over one set; the final will be a best-of-three set match with traditional scoring, although a tiebreak will replace the deciding set.
Serbs and Sisters in the Big Apple? Brilliant.
Seriously. I think I'm coming to New York for this.