CANSECO UPDATE:

Jose Canseco has a disk problem that is causing his lower back pain and will be out of Oakland's lineup for an indefinite period, team physician Allan Pont said yesterday.

Canseco, who checked into Children's Hospital in San Francisco Saturday, will stay overnight. Pont said Canseco is in intermittent traction and will continue therapy and further evaluation before being released.

Pont said Canseco, who has a history of back problems, started experiencing increased pain from his lower back down through his right leg before the weekend series at Oakland against Kansas City. Canseco has not played since Thursday at Texas.

A CAT scan revealed a bulging lower lumbar disk that is pinching his sciatic nerve, Pont said.

Canseco, batting .320, leads the Athletics with 20 home runs and 50 RBI, second in the majors in both categories to Detroit's Cecil Fielder (22 homers, 55 RBI).

MOVES:

The Detroit Tigers placed Gary Ward on the 15-day disabled list, retroactive to Saturday. Ward's middle finger on his right hand was fractured Friday when Seattle's Bill Swift hit him with a pitch.

To replace Ward, the Tigers purchased the contract of first baseman Jim Lindeman from their Class AAA affiliate in Toledo. . . .

Cleveland optioned pitcher Steve Olin to Class AAA Colorado Springs and recalled pitcher Jeff Kaiser from the same club. Olin was 1-2 with a 4.13 ERA in 19 games as a reliever for the Indians; Kaiser was 2-1 with a 2.86 in 19 games, all in relief, at Colorado Springs.