I figure ending Federer's kajillion* match winning streak at the US warrants a new thread rather than hijacking the Serena one. Del Potro won it in five (sports.espn.go.com) after coming back from two sets to one down in what was a very, very good match indeed.
Del Potro started nervous but came on strong and once his forehand got working he really bludgeoned Fed at times. I thought he'd lost his chance when he blew a lead in the fourth, but he came back well.
Roger struggled a bit with his serve throughout and was unusually tempremental at times. No linejudges were threatened though, so yay for that.
Time will tell whether del Potro goes on to be a streaky power hitter who can beat anyone on his day or a genuine force, but last night at least he looked pretty darned awesome.
*Figure based on estimate. May not be a real number.