BASEBALL American League
* OAKLAND ATHLETICS -- Recalled Jerry Browne, infielder, from Tacoma of the Pacific Coast League. Optioned John Briscoe, pitcher, to Tacoma of the Pacific Coast League.
* HOUSTON ASTROS -- Placed Ken Caminiti, third baseman, on the 15-day disabled list. Recalled Eric Yelding, infielder, from Tucson of the Pacific Coast League.
* MONTREAL EXPOS -- Optioned Doug Simons, pitcher, to Indianapolis of the American Association. Recalled Mel Rojas, pitcher, from Indianapolis. Transferred Darren Reed, outfielder, from a 20-day injury rehabilitation assignment to the 15-day disabled list.
* PITTSBURGH PIRATES -- Placed Bob Walk, pitcher, on the 15-day disabled list. Recalled Dennis Lamp, pitcher, from Buffalo of the American Association.
* SAN FRANCISCO GIANTS -- Assigned Mike Benjamin, infielder, to Phoenix of the Pacific Coast League on a rehabilitation assignment.
BASKETBALL National Basketball Association
* GOLDEN STATE WARRIORS -- Added Tom Tolbert, forward, to the playoff roster. Removed Jud Buechler, forward, from the playoff roster.
* INDIANA PACERS -- Activated Rik Smits, center, from the injured list. Removed Randy Wittman, guard, from the playoff roster.
* SEATTLE SUPERSONICS -- Activated Benoit Benjamin, center, from the injured list. Removed Bart Kofoed, guard, from the playoff roster.