Baseball

Boston Red Sox -- Promoted P Tony Fossas from roster of Class AAA Pawtucket. Announced that P Josias Manzanillo had cleared major-league waivers and will start season with Pawtucket.

Chicago Cubs -- Optioned P Steve Wilson to Class AAA Iowa.

Chicago White Sox -- Signed OF Bo Jackson to 1-year contract and placed him on 60-day disabled list.

Cleveland Indians -- Sent OF Carlos Martinez and P Mike Walker to Class AA Canton-Akron. Sent P Rudy Seanez and P Willie Blair to Class AAA Colorado Springs. Reassigned P Dave Otto to team's minor-league camp.

Houston Astros -- Sent P Bob Sebra to minor-league camp for assignment.

New York Mets -- Sent 1B Kelvin Torve and C Orlando Mercado to Class AAA Tidewater.

Philadelphia Phillies -- Optioned P Bruce Ruffin and P Bob Scanlan to Class AAA Scranton/Wilkes-Barre. Announced that OF-1B Ron Jones and P Steve Ontiveros would be put on disabled list and remain in Clearwater for extended spring training. Assigned P Danny Cox to Class A Clearwater.

San Diego Padres -- Optioned P Ricky Bones and P John Costello to Class AAA Las Vegas.

Basketball

Boston Celtics -- Activated F/G Derek Smith. Released G A.J. Wynder.

Houston Rockets -- Activated F Matt Bullard from injured list.

Colleges

Metro Conference -- Announced that North Carolina-Charlotte, South Florida and Virginia Commonwealth will join conference June 1.

Ohio Athletic Conference -- Named Tim Gleason commissioner.

Football

Hamilton Tiger-Cats (CFL) -- Named Greg Mohns director of player personnel. Signed LB Brian Hilk and LB John Motton.

Hockey

Minnesota North Stars -- Announced that senior VP Lou Nanne was leaving team after 23 years as player and administrator to join investment firm.

Washington Capitals -- Recalled G Jim Hrivnak from Baltimore (AHL).

Soccer

Dallas Sidekicks -- Announced retirement of G Krzystof Sobieski at end of season.