Pete Sampras dodged eight break points in the third set, twice coming back from 0-40, to advance to the quarterfinals with a 6-7 (7-2), 6-4, 7-6 (7-4) victory over Todd Martin at the ATP Championship.
Andre Agassi, No. 1 in the world, steamrolled 16th-seed Alberto Berasategui in the first set, had a letdown in the second, then toughened up for a 6-0, 0-6, 6-2 win.
Two-time champion Michael Chang, seeded fourth, beat Patrick Rafter of Australia 7-5, 6-1; No. 6 Goran Ivanisevic of Croatia beat Brett Steven of New Zealand 6-4, 6-4; No. 8 Michael Stich of Germany beat Patrick McEnroe 7-6, 6-3; No. 13 Thomas Enqvist of Sweden beat Jan Siemerink of the Netherlands 6-2, 6-3; and No. 11 Jim Courier beat Bernd Karbacher of Germany 7-5, 6-2.
Unseeded Renzo Furlan of Italy upset No. 7 Wayne Ferreira of South Africa 7-6 (7-2), 4-6, 7-6 (7-5).
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