BASEBALL

Chicago White Sox -- Named former Boston Red Sox IF Rico Petrocelli, 42, manager of its Class A Midwest League club. Manager Duke Simms, who directed Appleton to a 27-33 record this season, has been reassigned to the Peninsula White Sox of the Class A Carolina League.

Seattle Mariners -- Placed C Steve Yeager on the 15-day disabled list because of strained muscles in the back of his rib cage; called up C Dave Valle from Class AAA Calgary.

National League -- San Diego 1B Steve Garvey and OF Tony Gwynn have taken over first place in all-star voting. Garvey moved past Keith Hernandez of the New York Mets by accumulating 360,421 votes, 32,571 more than Hernandez. Gwynn replaced Willie McGee of St. Louis as the third outfielder behind the Mets' Darryl Strawberry and Atlanta's Dale Murphy. GOLF

Seniors Tour -- First round of Tournament Players Championship postponed by heavy rains. The tournament, with a revised 54-hole format, will begin today at 11:10 a.m. at the Canterbury Golf Club in Cleveland. BOXING

Heavyweight -- Promoters announced a fight between Marvis Frazier and Mike Tyson will be held July 26 at the Glens Falls (N.Y.) Civic Center. It also will be televised live by ABC. COLLEGES

Virginia Commonwealth -- Named alumnus Monty Knight an assistant basketball coach.

Virginia -- Named former NBA standout Mack Calvin as a part-time assistant on the men's basketball coaching staff; former soccer player Rob Steward was one of 25 athletes awarded a $2,000 NCAA postgraduate scholarship. He is planning to enter the university's medical school in the fall.

Marquette -- Bradley basketball Coach Dick Versace told The Milwaukee Journal he was interested in the vacancy left by Rick Majerus, who resigned Saturday to become an assistant with the Milwaukee Bucks. Others said to be interested are Moe Iba, former University of Nebraska coach, and Mike Newell of University of Arkansas-Little Rock. GYMNASTICS

U.S. National Championships -- Olympic gold medalist Tim Daggett led the field and his Olympic teammate Scott Johnson was 24th after the compulsory phase of the two-day competition in Indianapolis. Daggett, 24, had a 56.90 composite score for the six-event competition. Daniel Hayden, a junior at Arizona State who finished second to Brian Babcock last year, was second at 56.00. Dennis Hayden, 20, was just behind his twin brother, tied for third with Babcock at 55.95. Phil Cahoy was next at 54.95 with Charles Lakes, 21 and a senior at Illinois, next at 54.70 and UCLA's Rob Campbell seventh at 54.00.Doe Yamashiro, a 16-year-old high school junior from Gardenia, Calif., was the surprise leader after the four women's compulsories with a 44.58 score. Less than one point separated the top nine women.