BASEBALL American League * Baltimore Orioles -- Signed James Audley, Curtis Goodwin, Glenn Tatro and Basilio Ortiz, outfielders; David Forney and Scot Conner, pitchers; Troy Tallman, catcher; and Jeremy Wingett, first baseman.
* Boston Red Sox -- Recalled Jeff Plympton, pitcher, from Pawtucket of the International League.
* California Angels -- Placed Fernando Valenzuela, pitcher, on the 15-day disabled list.
* Kansas City Royals -- Signed Jeffrey Leonard, outfielder, to a minor-league contract with Omaha of the American Association.
* Minnesota Twins -- Signed Scott Stahoviak, third baseman, and Mike Durant, catcher. Assigned Stahoviak to Visalia of the California League and Durant to Kenosha of the Midwest League.
* Seattle Mariners -- Placed Scott Bankhead, pitcher, and Tracy Jones, outfielder, on the 15-day disabled list. Purchased the contract of Calvin Jones, pitcher, and Dave Cochrane, infielder, from Calgary of the Pacific Coast League. Designated Dave Richards, pitcher, and Alan Cockrell, outfielder, for assignment.
* Texas Rangers -- Signed Mark O'Brien and Bret Gerhart, pitchers.
* Toronto Blue Jays -- Signed Trevor Mallory and Dennis Gray, pitchers; Alexander Gonzalez, shortstop; and Brent Lutz, catcher.
National League * Los Angeles Dodgers -- Assigned the contract of Barry Lyons, catcher, to Albuquerque of the Pacific Coast League. Lyons rejected the assignment and became a free agent.
* New York Mets -- Signed Jason Jacome, pitcher, and assigned him to Kingsport of the Appalachian League.
* Pittsburgh Pirates -- Placed Jeff King, third baseman, on the 15-day disabled list. Purchased the contract of Joe Redfield, infielder, from Buffalo of the American Association. Signed David Dorneweed and Daniel Jones, pitchers. Assigned Dorneweed to Bradenton of the Gulf Coast League, and Jones to Welland of the New York-Penn League.
* St. Louis Cardinals -- Signed Allen Watson, pitcher, and assigned him to Hamilton of the New York-Penn League.
* San Francisco Giants -- Placed Scott Garrelts, pitcher, on the 15-day disabled list retroactive to June 11. Called up Mike Remlinger, pitcher, from Phoenix of the Pacific Coast League.
BASKETBALL National Basketball Association * Los Angeles Lakers -- Signed James Worthy, forward, to a contract extension through the 1995-96 season.
World Basketball League * Halifax Windjammers -- Signed Keenan DeBose, forward. Waived Tyrone Baldwin, center.
* Nashville Stars -- Signed Kerry Hammonds, center, and placed him on the taxi squad.
United States Basketball League * Atlanta Eagles -- Waived Anthony Jones, guard. Placed Carlos Funchess, guard, on the taxi squad. Activated Mike Smith, center, from the taxi squad.
* Long Island Surf -- Signed Marceol Nicola, forward.