Top-seeded Mats Wilander defeated Swedish countryman Stefan Eriksson, 6-1, 6-2, Thursday night to reach the quarterfinals of the $267,000 U.S. Pro tennis championships at Brookline, Mass.
Wilander needed only 84 minutes to dash the hopes of the 21-year-old Eriksson, who faced his biggest test since turning professional last September.
"Every time I got close, I knew he would come up with something to surprise me," said Eriksson, a sophomore at the University of Minnesota last year. "He's just a great player."
"He needs a few years on the tour," said Wilander, 20, of his less-experienced opponent.
Second-seeded Tim Mayotte won his quarterfinal match in the Volvo Tennis Hall of Fame championships at Newport, R.I., but third-seeded Scott Davis wasn't so fortunate.
Mayotte beat Marc Flur, 3-6, 6-4, 6-2, while Davis lost to sixth-seeded John Sadri, 6-3, 7-5.
Today, top-seeded Johan Kriek will play unseeded Tom Gullikson, and fourth-seeded David Pate will meet fifth-seeded Paul Annacone in the quarterfinals.
Sadri and Mayotte will play their semifinal match Saturday.
Second-seeded Eliot Teltscher, the last American survivor at Gstaad, Switzerland, was ousted by Mark Edmondson of Australia, 0-6, 7-5, 7-6, in the second round of the Swiss Open.
Teltscher had a 5-3 lead in the second set before Edmondson turned the match around.
Boris Becker, the 17-year-old West German who won the Wimbledon championship last Sunday, withdrew from the $200,000 D.C. National Bank tournament at Washington because of an ankle injury, officials said.
Becker has been vacationing in Monaco, where a doctor told him to stay off his swollen left ankle for 5 to 10 days, Henry Brehm, the tournament's director, said.
The clay-court tournament beginning Monday was supposed to be the first United States appearance for Becker.
Becker is still entered in the U.S. Clay Court championships beginning July 22 at Indianapolis.