Marat Safin of Russia, the fifth-seeded player in the United States Open, withdrew from the tournament yesterday because of an injured left knee.
"I don't think she is comfortable on the grass," Garrison said after defeating Sabatini, the fifth-seeded player, 6-1, 3-6, 6-2, in the round of 16.
Roddick entered the US Open as the fifth-seeded player.
After being quietly positioned as the fifth-seeded player in the women's draw, Mary Joe Fernandez left the United States Open yesterday with hardly a whisper.
Raymond Flowers, 16, the fifth-seeded player, who is built like a defensive lineman, pumped his fist and high-fived his teammates.
Richard Williams, the coach and father of the fifth-seeded player, has hinted at a lawsuit if the Tour persists in fining his daughter.
And the Russian Yevgeny Kafelnikov, the fifth-seeded player on the men's side, had to extend himself five sets over two days to beat Germany's Tomas Behrend.
Ivanisevic of Yugoslavia, the fifth-seeded player, beat Kevin Curren of the United States, 7-6, 7-6.
Chang, ranked ninth in the world, broke the tournament's fifth-seeded player in the 10th and final game of the match with three sensational passing shots.
Alberto Berasategui, the fifth-seeded player, defeated Emilio Alvarez, 4-6, 6-1, 6-3.