A roundup of the week Sept. 8-14

BOXING—SALVADOR SANCHEZ of Mexico retained his WBC featherweight title on a 15-round split decision over Patrick Ford of Guyana, in San Antonio, Texas.

PRO FOOTBALL—After two weeks only seven teams remained undefeated, and two of the unbeatens, San Francisco and Detroit, had won as many games as they did all last season. The 49ers beat St. Louis 24-21 on Ray Wersching's 33-yard field goal 4:12 into overtime, while the Lions routed Green Bay 29-7 on five field goals by rookie Kicker Ed Murray and two touchdowns by Billy Sims (page 14). Philadelphia was the most impressive victor, winning 42-7 over Minnesota, as Wilbert Montgomery ran for 169 yards and touchdowns of one and 72 yards. San Diego, Pittsburgh and Tampa Bay, the three 1979 division winners who haven't lost, all had close calls. The Chargers went 8:09 into overtime before a 24-yard pass from Dan Fouts to John Jefferson beat Oakland 30-24, and the Steelers were trailing Baltimore in the fourth quarter when Terry Bradshaw's 24-yard scoring pass to Jim Smith pulled out a 20-17 win. Doug Williams' one-yard TD dive with 57 seconds remaining gave the Bucs a 10-9 victory over winless Los Angeles, which is off to its worst start since 1963. Surprising Buffalo also remained unbeaten with a 20-10 triumph over the Jets. The Cowboys, who beat Washington 17-3 on Monday night, lost 41-20 in Denver's Mile High Stadium, where the Broncos have lost only eight games in five years. The Redskins rebounded from the Monday loss by edging the Giants 23-21 on Mark Moseley's 45-yard field goal with 1:55 left. In other games, Chicago defeated New Orleans 22-3 behind Walter Payton's 183-yard rushing performance, Atlanta routed the Patriots 37-21, Seattle hung on to beat Kansas City 17-16, and the Dolphins won 17-16 over the Bengals on a field goal in the final two minutes.

GOLF—PHIL HANCOCK shot a nine-under-par 275 to win the $250,000 Hall of Fame Tournament in Pinehurst, N.C. by one stroke over Scott Simpson.

Donna Caponi Young won a $100,000 LPGA tournament in Portsmouth, Va. with an 11-under-par 277, winning by four shots over Nancy Lopez-Melton.

HARNESS RACING—FRENCH CHEF, Stanley Dancer in the sulky, won the $200,000 Kentucky Pacing Derby for 2-year-olds by two lengths over Center Square. The colt's time of 1:57[3/5] for the mile at Louisville Downs was [1/5] of a second off the world record held by Slapstick, who finished third.

HORSE RACING—BOLD 'N DETERMINED ($22.80), Eddie Delahoussaye up, held off 1980 Kentucky Derby winner Genuine Risk in the stretch to win the $81,900 Maskette Stakes at Belmont by a nose. The 3-year-old filly covered the mile in 1:35[2/5] (page 71).

Tap shoes ($3), Ruben Hernandez in the irons, won the $157,675 Futurity Stakes at Belmont by 1¼ lengths over Dash O' Pleasure. The 2-year-old colt's time for the seven furlongs was 1:23[4/5].

Bold and gold ($24.60), ridden by Dean Hall, won the $191,255 Del Mar Futurity by 1¾ lengths over Looks Like Rain. The 2-year-old colt's time for the mile was 1:36[1/5].

MOTOR SPORTS—NELSON PIQUET, driving a Brabham, won the Italian Grand Prix at Imola by 28.92 seconds over Alan Jones in a Williams. Piquet averaged 114.1 mph for the 186.4-mile race and moved ahead of Jones in the world driving championship standings.

Darrell Waltrip, averaging 116.024 mph in a Monte Carlo, won a $158,900 NASCAR 500-mile race in Dover, Del. by .47 seconds over Harry Gant, who also drove a Monte Carlo.

SOCCER—NASL: The Cosmos swept the National Conference championship series from the Los Angeles Aztecs 2-1 and 3-1 as Giorgio Chinaglia scored four goals and assisted on the fifth. Chinaglia now has 81 career playoff points, 50 more than anyone else. In Sunday's Soccer Bowl the Cosmos will face American Conference winner Fort Lauderdale, which needed a 2-0 mini-game victory to eliminate the San Diego Sockers. Midfielders Ray Hudson and Teofilo Cubillas scored for the Strikers in the mini-game, as they had in the series opener, a 2-1 Fort Lauderdale victory. San Diego forced the mini-game by winning Game 2 of the series 4-2.

ASL: Sacramento won its playoff series from California by outscoring the Sunshine 5-4 in two games to move into this week's league championship game against Pennsylvania, which eliminated New York 3-1 after the teams had tied 1-1 in their series opener.

TENNIS—BILLIE JEAN KING beat Terry Holladay 7-5, 6-4 to win a $175,000 tournament in Tokyo.

MILEPOSTS—RETIRED: Houston Rocket Forward RICK BARRY, 36, the fourth-leading scorer in pro basketball history. During 14 seasons in the NBA and ABA, he had 25,279 points and made a record 89.3% of his free throws.

SIGNED: BY the Chicago Bulls, free agent Forward LARRY KENON, 27, who scored 20.1 points per game for San Antonio last season. In return, Chicago will give the Spurs two second-round 1981 draft choices and an undisclosed amount of cash.

SUSPENDED: With pay for the remainder of the 1980 season by baseball Commissioner Bowie Kuhn, Texas Ranger Pitcher FERGUSON JENKINS, 36, who was arrested in Toronto on Aug. 25 after customs officials at the airport there said they found marijuana, cocaine and hashish in his luggage. The suspension was ordered when Jenkins refused to cooperate with Kuhn's investigation of the incident.

TRADED: By the Indiana Pacers, Forward MICKEY JOHNSON, 28, the Pacers' leading scorer with 19.1 points per game last season, to the Milwaukee Bucks for both Forward GEORGE JOHNSON, 23, and a second-round pick in the 1981 draft.

Utah Jazz Forward BERNARD KING, 23, to Golden State for Center-Forward WAYNE COOPER, 23, and a 1981 second-round draft choice. After scoring 22.9 points per game in his first two years, King averaged only 9.3 points in 19 games last season.

To the Philadelphia Phillies for a player to be named later, Texas Ranger Relief Pitcher SPARKY LYLE, 36, whose 231 saves are a career record.

Guard JO JO WHITE, 33, by Golden State to Kansas City for future cash considerations.