BASEBALL

Chicago Cubs -- Placed RHP Scott Sanderson, who was their only regular starter still on the active roster, on the 60-day disabled list, retroactive to Wednesday (torn knee ligament); purchased RHP Jay Baller from Class AAA Iowa.

New York Yankees -- Asked waivers on OF Omar Moreno for the purpose of giving him his unconditional release. Moreno was hitting .197 with 1 HR, 4 RBI. Recalled OF Dan Pasqua from Columbus of International League.

Pittsburgh Pirates -- Said they have acquired LHP Bob Kipper from the California Angels to complete a six-player deal made earlier this month. BASKETBALL

Boston Celtics -- Said F Larry Bird won't have surgery on his ailing right elbow, following consultations with experts who said they could find no clearly defined problem.

New Jersey Nets -- C Fernando Martin will play for the NBA team instead of Real Madrid, his team since 1981. He was a member of Spain's silver medal-winning 1984 Olympic team.

Cincinnati Slammers (CBA) -- Obtained rights to G Dwight Anderson from Albuquerque, which had picked him second overall in the CBA's dispersal draft; Anderson, who played at Kentucky and Southern California, was a No. 2 pick of the Washington Bullets in 1982. HORSE RACING

Meadowlands -- The $1,344,000 Woodrow Wilson Pace for 2-year-olds was won by 49-to-1 shot Grade One in 1:54 3/5 for the mile.

Steelridge Horse Farms Inc. -- The North Center, Pa., farm lost 21 standardbreds to an early morning fire. The horses were valued up to $1 million. JURISPRUDENCE

New Orleans -- Prosecutors in the point-shaving trial of John (Hot Rod) Williams filed a motion asking Criminal District Judge Alvin V. Oser to soften the language of his Thursday mistrial order so the state can try the former Tulane basketball player again on two counts of sports bribery and three counts of conspiracy to commit sports bribery. Oser set a hearing for Aug. 23 to decide if he'll modify his order to allow Williams to be retried. SKIING

World Cup -- Karl Alpiger of Switzerland won first event of season, in Las Lenas, Argentina. Alpinger's 1:47.74 beat Doug Lewis, Salisbury, Vt., by .04 seconds. TENNIS

U.S. Open -- Said Andrea Jaeger, 1982 semifinalist who has been bothered in recent years with shoulder injuries, and Rosemary Casals are among 15 players chosen as wild-card entries for tournament, which begins Aug. 26.