Detroit -- Signed free agent first baseman Mike Ivie to a one-year contract.
Texas -- Reactivated outfielder Mickey Rivers. Placed infielder Mike Richardt on the 15-day disabled list.
Eastern Michigan -- Announced the resignation of athletic director Alex Agase, effective June 5.
St. Francis (Pa.) -- Art Martynuska resigned as football coach and was replaced by assistant George Klayko.
Chicago -- Traded defender Frantz Mathieu to Montreal for forward Gordon Hill. New Orleans -- Signed free agent defensive backs Raymond Berry, Kevin Gray, Perry Pittman and Robert Salter; defensive end Clay Ruyle, punter Robert Talley, fullback Ronnie Stewart and wide receiver Bobby Stewart.
Green Bay -- Signed guard Ron Hallstrom, the club's No. 1 draft choice from Iowa.
Phoenix (MISL) -- Named Tony Simoes head coach.