With her mother in the stands and her sister on the opposite side of the court, Serena Williams took little delight in this victory.

It didn't matter that she had just beaten big sister Venus for the first time. Or that she had won the Grand Slam Cup and an accompanying $900,000 paycheck. Or that she had extended her winning streak to 16 matches.

These family showdowns are draining.

"I'd never actually beaten Venus; I didn't know how it feels," she said. "It's kind of tough to take this win."

The U.S. Open champion won, 6-1, 3-6, 6-3, yesterday in Munich in a final in which the sisters showed little emotion during the match but embraced at the net when it was over.

Venus, at 19 a year older than her sister, applauded at the finish, as did their mother, Oracene.

"It's a win-win situation," said Venus, the 1998 champion. "One daughter is going to win. What's the difference?"

Earlier, Greg Rusedski used his big serve to overpower Tommy Haas and capture the richest prize in tennis, picking up $1.3 million as the male champion. Rusedski had 29 aces in winning, 6-3, 6-4, 6-7 (7-5), 7-6 (7-5).

The Williams vs. Williams match was the second sister-sister final in pro tennis history. In the first, Venus beat Serena in three sets in Key Biscayne, Fla., in March. She also won their two nontitle matches in 1998.

Serena was all over Venus from the outset, winning 12 of the first 13 points and holding Venus to three points in the first five games.

"I was cruising today," Serena said. "I haven't played this well, especially in the first set. Other than that, I started going back to my regular game, making a lot of errors, being silly. . . . I don't think Venus played that great today."

Soccer

U.S. Women Win

Danielle Fotopoulos scored two goals as the U.S. women's team beat South Korea, 5-0, in Columbus, Ohio, in its opening match of the U.S. Women's Cup '99 tournament. Fotopoulos scored from 10 yards on a pass from Tisha Venturini in the 82nd minute and then scored again in the 90th minute after Tiffeny Millbrett found her unguarded. . . .

Edwin Gorter scored two goals and the Miami Fusion remained in contention for a Major League Soccer playoff bid with a 4-1 victory over the Columbus Crew in Fort Lauderdale, Fla. . . . Jason Kreis had two goals and an assist as the Dallas Burn overcame a two-goal halftime deficit for a 4-3 victory over the visiting Los Angeles Galaxy.

Olympics

Testimony Delayed

International Olympic Committee President Juan Antonio Samaranch said he can't testify this month at a congressional hearing into Olympic bidding scandals, but he is willing to do so later in the year.

Samaranch said he would testify in December after the IOC votes on a series of reform measures. Samaranch sent a letter to Rep. Fred Upton (R-Mich.), who had requested that he appear at an Oct. 14 hearing into excesses related to Atlanta's winning bid for the 1996 Summer Games.

Upton has threatened to subpoena Samaranch if he declines to appear at the hearing of the House commerce subcommittee on oversight and investigation. Samaranch declined to appear at a similar hearing in the Senate in April.

In the letter, Samaranch said the IOC "will fully cooperate" with Upton. But he said he was too busy at the moment pushing through reforms prompted by the Salt Lake City bribery scandal.

Track and Field

Tergat Rallies

Kenya's Paul Tergat overcame a collision and used a strong kick to pass South Africa's Hendrick Ramaala in the final stages to win his first World Half-Marathon Championship in Palermo, Italy. Tegla Loroupe, also of Kenya, won her third straight women's title.

Tergat finished in 1 hour 1 minute 50 seconds and Loroupe, who led the entire way, finished at 1:08:48.

Basketball

Wizards Tickets on Sale

Tickets for the Washington Wizards' Oct. 23 preseason game with the Cleveland Cavaliers at Baltimore Arena will go on sale today at noon at the Baltimore Arena box office and all TicketMaster outlets. The Wizards' intrasquad scrimmage on Oct. 15 at 7 p.m. will be open to the public. There will be general admission seating to the MCI Center event, with seats available on a first-come, first-served basis.

During the scrimmage, tickets for all 41 home games will be available for purchase at the MCI Center box office. This will be the first opportunity to buy single-game tickets for the Wizards' home games.

Steeplechasing

Thomas Gets Third Win

Jonathan Thomas won for the third time in just over a week during the second day of sanctioned racing at the Virginia Fall Races in Middleburg.

Thomas, 19, rode in his first hurdles races Sept. 25 (finishing fourth on Joe of Six and first on Haveplanwilltravel) at Fairfax Races. After winning again at Colonial Downs Friday night, he jumped back on the 3-year-old gelding Joe Of Six for trainer-owner Jack Fisher and led the field of 10 in the $7,500 Daniel Sands Cup maiden hurdles. Thomas won by three lengths in a time of 4:18 1/5.

"This horse loves to jump," Thomas said. "He attacks fences like no other horse I have ever ridden. I rode him with a lot more confidence here than at Fairfax."

Roger Horgan took the $5,000 Sunnybank Cup on Foxbrook Farm's Keep It A Secret for trainer Louis "Paddy" Neilson III. Anne Hambleton rode Holzmann to victory in the $5,000 Foxhunter's Chase.

Colleges

Vols' Probe Continues

Although Tennessee's initial investigation into charges of academic abuse in the football program uncovered no wrongdoing, Athletic Director Doug Dickey said the matter might not be ended.

"There may be a loose end in there somewhere that deals with somebody who's not an eligible athlete at this point," Dickey said. "That's possible. . . . I wouldn't say it's over until . . . we file a written report."

Boxing

Chavez on Brink

Willy Wise made Julio Cesar Chavez look like the 37-year-old fighter he is, battering him for 10 rounds to win a lopsided decision Saturday night in Las Vegas and putting plans by Chavez to fight for a title again in jeopardy. . . . Ricardo Lopez of Mexico defeated Will Grigsby in a 12-round decision to take the IBF junior flyweight championship.