BASEBALL Kansas City Royals -- Traded SS Buddy Biancalana to Houston for minor league RHP Mel Stottlemyre Jr.St. Louis Cardinals -- Scheduled LHP John Tudor for activation in time to start Saturday night vs. Pittsburgh. New York Yankees -- Sent IF Paul Zuvella to Class AAA Columbus; promoted OF Roberto Kelly. Oakland A's -- Activated IF Mike Gallego from disabled list; gave IF Johnnie LeMaster his unconditional release. BASKETBALL Portland Trail Blazers -- Extended F Jerome Kersey's contract three years, guaranteeing him about $2 million, plus incentives, the next four years. Los Angeles Lakers -- Keith Erickson, team's radio/television commentator the past seven years, will resign to become president of Sports Fantasies, Inc. Savannah Spirits (CBA) -- Named Henry Bibby coach. HOCKEY New York Rangers -- Re-signed C Ron Duguay, terms unannounced. New Jersey Devils -- G Kirk McLean had successful knee arthroscopy. Boston Bruins -- Signed RW Lyndon Byers, G Terry Taillefer, C Bill O'Dwyer. Buffalo Sabres -- Signed RWs Trent Kaese and Kevin Kerr, G Kenton Rein. Calgary Flames -- Agreed to terms with RW Rich Chernomaz. JURISPRUDENCE Sacramento (Calif.) County dropped fugitive charges against former NBA player Mike Bratz after Arizona officials failed to file extradition papers on time. Bratz, three Phoenix Suns teammates and two others were indicted on narcotics charges April 16 in Phoenix. COLLEGES Southeastern Conference -- Signed contract to send its football champion to Sugar Bowl through 1990. Cornell -- Signed football coach Maxie Baughan for three more years.