Baseball

Minnesota Twins -- Signed P Brad Radke.

St. Louis Cardinals -- Announced 1-year contract extensions through 1993 for manager Joe Torre and general manager Dal Maxvill.

Texas Rangers -- Placed OF Jack Daugherty (.184, 8 RBI in 33 games) on the 15-day disabled list.

Colleges

Loyola (Md.) -- Announced the signing of 7 lacrosse recruits to national letters of intent: D Sean Chenworth, Essex Community College; D Jason Foley, Yorktown (N.Y.) High; A Christian Johns, Lakeland (N.Y.) High; A Kevin Lutz, Boys' Latin; G Tim McGeeney, North County High; D Stan Ross, Boys' Latin; M Tom Welsch, Calvert Hall.

Yale -- Named Kathy Arendsen softball coach; Joe Benanto linebacker coach; Larry Ciotti freshman football coach; Michelle Frates assistant field hockey coach; Patti Jo Casey women's assistant soccer coach; and John Glynne men's interim assistant ice hockey coach.

Football

Atlanta Falcons -- Signed CB Brian Mitchell.

Chicago Bears -- Signed DL Chris Zorich and P/PK Chris Gardocki to 4-year contracts.

Detroit Lions -- Signed DE Otis Moore.

Kansas City Chiefs -- Signed WR Tim Barnett and DB Eric Ramsey.

L Los Angeles Rams -- Signed G Duval Love and PK John Hopkins.

Minnesota Vikings -- Agreed to terms with RB Herschel Walker on a 1-year contract and CB Audray McMillian and CB Tony Jones.

Philadelphia Eagles -- Signed DE Winfred Bryant and DE Erwin Grabisna.

Pittsburgh Steelers -- Signed WR Carl Parker and C Doug Marrone.

Tennis

WTA -- Fined Monica Seles $6,000 for her late withdrawal from Wimbledon.