Jennifer Capriati and Elena Dementieva claimed semi-final spots at the U.S. Open after a day of drama, controversy and magical tennis on Tuesday.
Russian sixth seed Dementieva showed incredible courage, battling against a strained thigh, stomach pains and her own serving demons to end second seed Amelie Mauresmo's dream of a first grand slam title with a 4-6 6-4 7-6 victory.
But the real fireworks came when Capriati downed twice former champion Serena Williams 2-6 6-4 6-4 after two hours six minutes of unrelenting theatre.
That was followed by another awesome display of power by defending men's champion Andy Roddick as he blazed past Spain's Tommy Robredo 6-3 6-2 6-4 to advance to the last eight.
Roddick now faces big-serving Swede Joachim Johansson after the 28th seed took his ace tally for the tournament to 76 in a 6-2 6-3 6-2 defeat of Frenchman Michael Llodra.
2001 champion Lleyton Hewitt cruised through to the quarter-finals, beating unseeded Slovak Karol Beck 6-4 6-2 6-2.
Tommy Haas showing signs of the form that took him to two in the world before he was sidelined by shoulder surgery, saved three set points in the opening set against teenage Czech Tomas Berdych before progressing 7-6 6-1 7-5.
Filed by Eilish Barry