Alain Prost increased his lead to 20 points in the battle for the Grand Prix driving title by wheeling his McLaren- Honda to victory in the Italian Grand Prix, in Monza. Prost, who leads teammate Ayrton Senna 71-51 with four races to go, finished 7.3 seconds ahead of Gerhard Berger, in a Ferrari. Prost averaged 144 mph over 53 laps of the 3.6-mile Monza Autodrome. Senna dropped out with mechanical difficulties after 45 laps.
ROWING—At the World Rowing Championships in Bled, Yugoslavia, KRIS KARLSON of the U.S. won a gold medal in the lightweight single sculls and teamed with CAREY BETH SANDS of the U.S. to win the lightweight double sculls.
TENNIS—At the U.S. Open, in New York City, BORIS BECKER won the men's title, defeating Ivan Lendl 7-6, 1-6, 6-3, 7-6, and STEFFI GRAF beat Martina Navratilova 3-6, 7-5, 6-1 in the women's final (page 22). In the doubles, MARTINA NAVRATILOVA and HANA MANDLIKOVA won the women's competition 5-7, 6-4, 6-4 over Mary Joe Fernandez and Pam Shriver; JOHN McENROE and MARK WOODFORDE defeated Ken Flach and Robert Seguso 6-4, 4-6, 6-3, 6-3 for the men's crown; and ROBIN WHITE and SHELBY CANNON prevailed 3-6, 6-2, 7-5 in the mixed final over Meredith McGrath and Rick Leach.
TRACK—At the World Cup meet in Barcelona, the U.S. men and East German women won the team titles (page 78).
MILEPOSTS—STRIPPED: Of his world records in the 60- and 100-meter sprints by the International Amateur Athletic Association, effective Jan. 1, 1990, BEN JOHNSON, 27, of Canada, who in June admitted that he had used steroids (page 17).
TRADED: By the Philadelphia Phillies, pitcher LARRY McWILLIAMS, 35, to the Kansas City Royals for a player to be named later.
By the NBA Phoenix Suns, guard STEVE KERR, 23, to the Cleveland Cavaliers for a second-round draft pick in 1993.
By the NFL San Diego Chargers, running back BARRY REDDEN, 29, to the Cleveland Browns for an undisclosed future draft choice; and by the Tampa Bay Buccaneers, defensive end RON HOLMES, 26, to the Denver Broncos for an undisclosed draft choice.
By the NHL New York Rangers, left wing CHRIS McRAE, 24, and future considerations to the Detroit Red Wings for left wing KRIS KING, 23.
DIED: TOM BLACKALLER, 49, who competed in the America's Cup trials in 1980, '83 and '87; of a heart attack; in Sonoma, Calif. (page 18).