US OPEN: Day 10

Finally, 10 days into the final grand slam of the year the upsets begin: Mary Pierce defeats Amèlie Mauresmo in straight sets (6-4, 6-1). But the upset of the year is Elena Dementieva defeating Lindsay Davenport 6-1, 3-6, 7-6(6) after facing a match point on Lindsay's serve at 6-5 in the tie-break! Lindsay looked slow, confused and uninspired. Elena showed how mentally tough and what an incredible mover she is. Despite her truly pathetic serve, her forehand and backhand can be hit as hard or harder than Davenport, whose hitting of the ball is legendary.
I didn't see the Mauresmo-Pierce match, but that appears to have been relatively high quality with few errors and few winners.