BASEBALL
* Orioles -- Signed Ed Yacopino (outfielder) and assigned him to Hagerstown of the Eastern League.
* California Angels -- Actviated Lance Parrish (catcher) from the 15-day disabled list. Placed Junior Felix (outfielder) on the 15-day disabled list.
* Detroit Tigers -- Traded Dan Petry (pitcher) to the Atlanta Braves for Vincent Rosario (infielder) and assigned Rosario to Toledo of the International League. Recalled Rusty Meacham (pitcher) from Toledo.