* Milwaukee Brewers -- Fired Tom Trebelhorn (manager).
* Texas Rangers -- Exercised its option on Nolan Ryan (pitcher) for the 1991-92 season.
National League * Philadelphia Phillies -- Assigned John Morris (outfielder) and Tim Mauser (pitcher) to Scranton-Wilkes-Barre of the International League. Announced that Darrel Akerfelds (pitcher) and Sil Campusano (outfielder) have opted to become free agents.
tTC * New York Jets -- Placed Mark Boyer (tight end) on injured reserve. Signed Pat Kelly (tight end).
SOCCER (MSL) * Blast -- Signed Doug Miller (forward) to a 1-year contract.