Michael Chang (Michael Snyder photo) | ZOOM |

        MASON - Michael Chang has 40 victories and Pete Sampras 38 in the Western & Southern Financial Masters, the two winningest active players in tournament history. No two triumphs were more welcome than the ones they had Tuesday.

        The 30-year-old Americans drew ovations after their wildly disparate matches. Chang, in the midst of a 2-13 season that had dropped his ranking to No. 111, upset world No. 3 Tommy Haas 6-3, 6-2. Sampras, seeing Guillermo Canas serve for the match, rallied to win 5-7, 7-6 (6), 6-3.

        Those results wrapped up a first round in which eight seeded players lost, while three wild cards and three qualifiers advanced.

Pete Sampras (Tony Jones photo) | ZOOM |

        Sampras, though the seeded player, actually was lower-ranked (16th) than Canas (12th), because Canas' ranking climbed after winning the Tennis Masters Canada on Sunday. Sampras trailed 6-5 in the second set when he broke Canas. “I didn't feel I had the rhythm tonight, but I managed to hang in there and get into a tiebreaker and play pretty solid,” Sampras said.

        Sampras hit four aces in the breaker but wasted three set points as Canas rallied to 6-6. Sampras hit a service winner and then a crosscourt passing shot to take the set.

AT A GLANCE

Where: ATP Tennis Center, Mason.   Today's schedule: Sessions at 11 a.m., 7 p.m.   TV: 11 a.m.-1 p.m., ESPN (live), 1-3 p.m., ESPN2 (live), 10 p.m.-midnight, ESPN2 (delayed)   Tickets: Available for each session at $22 per session. Call 651-0303 or TicketMaster at 562-4949.

        He broke Canas twice to go up 3-0 in the third, but Canas drew within 3-2 and held two break points on Sampras' serve. Sampras fired three consecutive aces and then won a serve-and-volley point to hold serve.

        It was the first time Sampras had faced a higher-ranked player in a tournament's first round since the 1990 Australian Open.

        Chang is 40-12 here in 15 appearances; Sampras is 38-11 in 14 appearances.

        Other upsets Tuesday: Taylor Dent beat No. 9 Thomas Johansson; Dominik Hrbaty beat No. 11 Sebastien Grosjean; and Richard Krajicek topped No. 13 Jiri Novak.

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