BASEBALL American League * Kansas City Royals -- Waived Jeffrey Leonard (outfielder).
* Milwaukee Brewers -- Named Fred Stanley director of player development. Reassigned Dick Hackett (vice president of marketing) to the position of vice president of governmental affairs.
* New York Yankees -- Waived Pat Sheridan (outfielder) for the purpose of giving him his unconditional release.
* Texas Rangers -- Announced Mario Diaz and Gary Green (infielders) and Mark Parent (catcher) have rejected outright assignment to Oklahoma City of the American Association and become free agents.