* AL -- Extended the contract of Bobby Brown, president, through Dec. 31, 1993.
* TEXAS RANGERS -- Named Luis R. Mayoral assistant public relations director.
* SAN FRANCISCO GIANTS -- Sent Jimmy Myers, Kevin Rogers and Chris Hancock, pitchers, and Jim McNamara, catcher, to their minor league camp for reassignment.
National Basketball Association
* GOLDEN STATE WARRIORS -- Activated Tom Tolbert, forward, from the injured list.
United States Basketball League
* LEAGUE OFFICE -- Named Jay Liberti chairman of the rules committee.
* PHILADELPHIA SPIRITS -- Named Rich Bradley assistant general manager and Mike Hirschman director of communications.
Canadian Football League
* OTTAWA ROUGH RIDERS -- Signed Geoff Mitchell, running back, and Ken Halley, defensive back, to two-year contracts.
World League of American Football
* BARCELONA DRAGONS -- Announced the retirement of Kevin Smith, cornerback. Traded Joe Brunson, defensive lineman, to London for future considerations; Kevin Guidry, cornerback, to Orlando for future considerations; and Matt Ruhland, defensive tackle, to San Antonio for future considerations.
* BIRMINGHAM FIRE -- Traded Ricky Shaw, linebacker, to London for a 10th round pick in the 1993 draft.
* LONDON MONARCHS -- Released Kirk Warner, tackle.
* MONTREAL MACHINE -- Acquired Jay Butler, offensive tackle, and Joe Johnson, cornerback.
* SACRAMENTO SURGE -- Traded Robbie Keen, placekicker, and Jeff Bridewell, quarterback, to Barcelona for Scott Campbell, quarterback; Paul Frazier, running back, to Orlando for Henry Brinson, defensive end; and Dennis Lee Johnson, cornerback, to San Antonio for Vance Hammond, defensive lineman.
* SAN ANTONIO RIDERS -- Traded Murray Garrett, defensive lineman, to Orlando for future considerations.
Major Soccer League
* ST. LOUIS STORM -- Named Fernando Clavijo interim coach.
* BOSTON COLLEGE -- Agreed to a multi-year contract extension with Jim O'Brien, basketball coach.
* FLORIDA -- Named Jeremy Foley athletic director.
* MARIST -- Named Jim Parady football coach.
* RAMAPO -- Announced the resignation of Jim Miceli, football coach, to accept an assistant's position at Pittsburgh.