A Roundup of the Week Sept. 28-Oct. 4

BOXING—WILFREDO VASQUEZ of Puerto Rico won the WBA bantamweight title with a 10th-round KO of Park Chan Yong of South Korea, in Seoul.

In Gravelines, France, BRIAN MITCHELL of South Africa retained his WBA super featherweight crown with a unanimous 15-round decision over Daniel Londas of France.

Gianfranco Rosi of Italy took the WBC super welterweight title from Lupe Aquino of the U.S. with a unanimous 12-round decision in Perugia, Italy.

CYCLING—The U.S.S.R. defeated the U.S. in a dual meet at the Olympic Velodrome in Carson, Calif.

Sean Kelly of Ireland defeated countryman Stephen Roche by 43 seconds to win the five-day International Classic, covering the 600 miles in 25 hours, 1 minute and 2 seconds.

EQUESTRIAN—In Baltimore, FOR THE MOMENT, ridden by Lisa Jacquin, edged 1984 Olympic gold medalist Touch of Class to win his sixth Show Jumping Grandprix this year.

PRO FOOTBALL—As talks between the striking NFL Players Association and the league's 28 owners broke down, most fans stayed home rather than watch lineups comprising rookies, free agents and nonstriking players (page 38). Eleven regulars crossed the picket line for St. Louis, but the Cards still lost to Washington 28-21, as Skins quarterback Ed Rubbert passed for three TDs and 334 yards. San Diego edged Cincinnati 10-9 when Jeff Gaffney connected on a 24-yard field goal with 2:44 on the clock. John Fourcade passed for three TDs to lead New Orleans to a 37-10 win over the Los Angeles Rams. Aided by 11 sacks, Chicago pummeled Philadelphia 35-3. Kevin Sweeney had three TDs in a 38-24 Dallas win over the Jets. Tampa Bay rallied from a 17-0 first-quarter deficit to beat Detroit 31-27. Regular quarterback Gary Hogeboom connected on five TD passes as Indianapolis trounced Buffalo 47-6. Elsewhere, Cleveland beat New England 20-10; the Raiders drubbed Kansas City 35-17; Houston whipped Denver 40-10; Seattle got past Miami 24-20; Pittsburgh beat Atlanta 28-12; and Green Bay defeated Minnesota 23-16.

GOLF—KEN BROWN of Great Britain shot a final-round 68 for a 72-hole, 14-under-par 266 to win the Southern Open in Columbus, Ga., his first PGA Tour victory, and $72,000. He finished seven strokes ahead of three players who tied for second.

HARNESS RACING—NAPOLETANO ($3.80), driven by Bill O'Donnell, overtook Mack Lobell in the final strides to score a half-length victory in the Kentucky Futurity at the Red Mile in Lexington. Napoletano, who earned $69,235, covered the mile in 1:57[3/5] and foiled Mack Lobell's attempt to sweep the trotting Triple Crown.

Leah Almahurst ($6.80), with Bill Fahy in the sulky, defeated Conquered Quest by 4¼ lengths to win $215,217 in the Breeders Crown 2-year-old filly pace at Freestate Raceway in Laurel, Md. She completed the mile in 2:00[1/5].

HORSE RACING—At Belmont Park, TEJANO ($3.60), with Jacinto Vasquez in the saddle, won the Cowdin for 2-year-olds by 4¾ lengths over Tsar-baby, covering the seven furlongs in 1:23[2/5] to win $103,320. In the Matron for 2-year-old fillies, OVER ALL ($2.60), with Angel Cordero up, was a 5¾-length winner over Justsayno and won $82,140. She ran the seven furlongs in 1:24[4/5].

Trempolino, ridden by Pat Edderly, finished two lengths ahead of Tony Bin and won the 66th Prix de l'Arc de Triomphe at Longchamp in Paris.

MOTOR SPORTS—TERRY LABONTE, driving a Chevrolet, won his first NASCAR event of the season, defeating Dale Earnhardt, also in a Chevrolet, by 5.3 seconds in the Holly Farms 400 in North Wilkesboro, N.C. Labonte averaged 96.051 mph and earned a first prize of $45,575.

SYNCHRONIZED SWIMMING—In Cairo, the U.S. won the team event at the world championships, edging Canada 57-55. CAROLYN WALDO of Canada retained her individual title, defeating 1984 Olympic gold medalist Tracie Ruiz of the U.S. In the duet, Waldo paired with countrywoman MICHELLE CAMERON to beat Karen and Sarah Josephson of the U.S.

TENNIS—PETER LUNDGREN of Sweden beat Jim Pugh of the U.S. to win the Transamerica Open and the $46,400 first prize, in San Francisco.

Chris Evert defeated Lori McNeil 6-3, 7-5 to win a Virginia Slims event and $30,500. in New Orleans.

MILEPOSTS—BARRED: By the International Amateur Athletic Federation, from competition for two years, including the 1988 Summer Olympics, runner SANDRA GASSER, 25, of Switzerland, after she tested positive for steroids at the World Track and Field Championships in Rome last month. Gasser was also stripped of her bronze medal in the 1,500 meters.

DISMISSED: By a municipal court judge in Los Angeles, assault and battery charges against heavyweight champion MIKE TYSON, 21. Tyson had been accused of punching a 20-year-old parking lot attendant during a June 21 scuffle outside the Greek Theatre.

NAMED: As interim basketball coach at Virginia Tech, assistant coach FRANKIE ALLEN, 38. He replaces Charles Moir, 56, who resigned in the wake of an internal inquiry into the Hokies' basketball program that has uncovered 13 alleged NCAA violations. Moir was the winningest coach in Tech history, with a 213-119 record in 11 seasons.

RELEASED: By the Baltimore Orioles, second baseman ALAN WIGGINS, 29. The five-year veteran was suspended by commissioner Peter Ueberroth on Aug. 31 for "improper behavior," after reportedly failing a drug test.

RETIRED: Hartford Whalers right wing WAYNE BABYCH, 29, who scored 192 goals in his eight-year career with four NHL teams.

Minnesota North Stars defenseman BRAD MAXWELL, 30, who played for five teams in his 10-year NHL career. In 1983-84, Maxwell set a Minnesota club record by scoring 19 goals, the most by a defenseman in a season.

SIGNED: By the St. Louis Cardinals, infielder DOUG DeCINCES, 37, who was released by the California Angels on Sept. 25. The 13-year veteran has a .259 career batting average.

TRADED: By the New York Rangers, left wing GEORGE McPHEE, 29, to the Winnipeg Jets for a fourth-round 1989 draft pick; and to the Quebec Nordiques, defenseman TERRY CARKNER, 21, and left wing JEFF JACKSON, 22, for left wing JOHN OGRODNICK, 28, and defenseman DAVID SHAW, 23. In eight NHL seasons with Detroit and Quebec, Ogrodnick has scored 270 goals.