Chicago White Sox -- Placed 2B Julio Cruz on 15-day disabled list, sprained knee. Purchased IF-OF Bryan Little from Buffalo of American Association. Milwaukee Brewers -- Reactivated OF Rick Manning, who had been on the disabled list with broken toe. New York Mets -- Placed P Calvin Schiraldi on 15-day DL with fractured small toe on right foot and activated IF Ron Gardenhire, who has had hamstring injury. Named Bud Harrelson as third base coach, replacing Bobby Valentine, who was named manager of the Texas Rangers Thursday. Harrelson has been managing Columbia Mets of Class A South Atlantic League. Pittsburgh Pirates -- Placed sore-armed P Larry McWilliams on 15-day DL. Activated SS Tim Foli, who has had leg soreness. FOOTBALL

San Francisco 49ers -- Signed six free agents: Texas A&M QB John Mazur, K Stephen Jordan of Southern California; WR Theo Windham of Southern California; LB Derek Bunch of Michigan State; DB Lynden Brown of Arizona, and WR Donnie Morehead of Washington. Buffalo Bills -- Signed first-round draft choice CB Derrick Burroughs to series of one-year contracts. Cincinnati Bengals -- Released CB Ray Griffin, LBs Rick Razzano, Brian Pillman. New Jersey Generals -- Reported running backs and special teams coach Clark Gaines was in good condition after surgery for a benign tumor. BASKETBALL

New York Knicks -- After securing the rights to Patrick Ewing last week, small forward is next priority for team because of Bernard King's slow recovery from knee injury. King, NBA's leading scorer at 32.9 points per game this season, might not return for nine months to a year. Rhode Island (USBL) -- Signed C Manute Bol and G Stu Primas. COLLEGES

Connecticut -- Named Geno Auriemma, assistant at Virginia past four years, as head women's basketball coach. AUTO RACING

Indianapolis 500 -- Final weekend of qualifications begins today, with four spots still vacant in the tentative 33-car lineup.