* Sacramento Kings -- Released Ralph Sampson, center.
* League -- Reinstated Michael Holton, guard, for the 1991-92 season.
* Grand Rapids Hoops -- Signed Joe Faulkner, forward, and DeWayne Johns, guard.
* Lacrosse Catbirds -- Signed Adrian Boyd, Darryl Liberty and Tim Sanks, guards; Kenny Battle, Daren Hoges and Sean Poole, forwards; and Al Thomsen, center.
* Rockford Lightning -- Signed Tim Dillon, center.
* Green Bay Packers -- Placed Vinnie Clark, cornerback, on injured reserve.
* Indianapolis Colts -- Waived Reggie Thornton, wide receiver. Signed Sammy Martin, wide receiver.
* New York Giants -- Signed Raul Allegre, kicker.
* New York Jets -- Announced the retirement of JoJo Townsell, wide receiver. Signed Corwin Anthony, tight end, to the practice squad.
* Los Angeles Kings -- Sent Vern Smith, defenseman, to Phoenix of the International Hockey League.