BASEBALL American League Chicago White Sox -- Signed Mike Dunne to minor-leagucontract.

Kansas City Royals -- Fired manager John Wathan. Named Bob Schaefer interim manager.

Milwaukee Brewers -- Placed OF Darryl Hamilton (strained left shoulder; .226 in 30 games) on 15-day DL. Called up OF Matias Carrillo (.316, 4, 21 at Class AAA Denver). Announced that P Ron Robinson (elbow) was moved from 15-day DL to 60-day DL

National League Chicago Cubs --Named Jim Essian manager and signed him to a contract through the 1992 season.

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