Formula One -- Simtek Grand Prix team signed Austrian driver Roland Ratzenberger for at least the first five races of the season.
NASCAR -- Driver Bobby Hillin Jr. resigned from the Winston Cup team owned by Junie Donlavey.
New York Mets -- Sent SS Tito Navarro, SS Aaron Ledesma and Joe Vitko to their minor-league camp for reassignment.
San Francisco Giants -- Assigned P Kurt Peltzer, P Steve Soderstrom, C Rob Taylor, C Dan Fernandez and OF Chris Singleton to the minors.
L Boston Celtics -- Signed G Tony Harris to a 10-day contract.
Los Angeles Clippers -- Placed F Loy Vaught on the injured list. Activated C Bob Martin from the injured list.
MEAC Officials Hall of Fame -- Announced that Baltimore City Community College assistant AD Cyril O. Byron will be inducted Saturday at the Omni Inner Harbor Hotel.
Boston University -- Fired men's basketball coach Bob Brown (38-73 in four seasons).
Coe -- Announced the resignation of men's basketball coach Bob Landis (23-43 in three seasons).
DePaul -- Reinstated basketball players Tom Kleinschmidt and Belefia Parks.
Florida -- Named Ron Zook linebackers coach; Bob Pruett secondary coach; Charlie Strong assistant head coach and defensive tackles coach; Bob Sanders defensive line coordinator; Carl Franks inside linebackers coach; and Jim Collins tight ends coach and recruiting coordinator.
Freed-Hardeman -- Women's basketball coach Randy Brown resigned.
Lincoln Memorial -- Named Craig Rasmuson men's basketball coach.Maine -- Asked Penobscot County Superior Court for a TRO that would enable it to get its defending national championship team into the Hockey East tournament this week. The league barred the Black Bears because a player was academically ineligible for much of the season.
Marshall -- Named Billy Donovan men's basketball coach.
McNeese State -- Announced resignation of men's basketball coach Steve Welch (75-121 in seven seasons), effective April 30.
Morehead State -- Will eliminate 63 football scholarships by 1998.
New Mexico -- Extended the contract of men's basketball coach Dave Bliss (128-61 in six seasons) for four years through the 1998-99 season.
Redlands -- Named Bill Dobson assistant football coach.
St. Cloud State -- Named Lori Ulferts women's basketball coach.
Southern Methodist -- Named receivers coach Curtis Johnson.
Atlanta Falcons -- Agreed to terms with DE Lester Archambeau and LB Tim Paulk. Signed CB D. J. Johnson, CB Lawrence Hatch and RB Tim Lowery.
Detroit Lions -- Announced the resignation of defensive coordinator Henry Bullough so he can take an assistant's job with Michigan State. Named Herb Paterra defensive coordinator.
Los Angeles Rams -- Signed QB Chris Miller, an unrestricted free agent.
New Orleans Saints -- Took back offers to RB Fred McAfee, TE Tommie Stowers and OL Tom Backes, making all three unrestricted free agents.
New York Jets -- Announced that S Ronnie Lott agreed to have his contract restructured to give the club extra room under the salary cap.
Phoenix Cardinals -- Signed free-agent LB Randy Kirk for one year.
Ottawa Rough Riders (CFL) -- Signed G Brad Tierney for one year.
High schools Atlanta Tipoff Club -- Named following male finalists for Naismith Prep Basketball Player of the Year: Rael LaFrentz (Monona, Iowa); Trajan Langdon (Anchorage, Alaska); Felipe Lopez (New York); Andrae Patterson (Abilene, Texas); and Jerod Ward (Clinton, Miss.). Named following female finalists: Chandra Benton (Lake Oswego, Ore.); Kristin Folkl (St. Louis); Monick Foote (Hockessin, Del.); Tiffany Gooden (Fort Wayne, Ind.); and Nykesha Sales (Bloomfield, Conn.)
New Jersey Devils -- Recalled LW Scott Pellerin from AHL Albany.
Ottawa Senators -- Signed D Derek Mayer, a member of Team Canada.
Pittsburgh Penguins -- Called up D Chris Tamer from IHL Cleveland.
San Jose Sharks -- Assigned D Mike Rathje to IHL Kansas City.
USA Hockey -- Named Lou Nanne GM of the team that will compete in the world championships April 25 to May 8 in Italy.
ACC -- Named Maryland senior M Neal Dupcak (St. Mary's) Offensive Player of the Week. He scored five goals Saturday against Duke.
Real Madrid -- Fired coach Benito Floro.