Doctors might have to amputate former San Francisco Giants pitcher Dave Dravecky's left arm to prevent a second cancerous tumor from spreading.

Dravecky resumed pitching in 1989 after having surgery eight months earlier to remove a tumor from the arm. He retired after breaking the weakened arm twice late in the 1989 season.

Dravecky said in an interview with the Los Angeles Times that a new tumor was found last summer.

"They could possibly have to amputate my arm," Dravecky told the Times while waiting to deliver a motivational speech in Irvine, Calif. "We've tried everything else. There could be no other choice."

Dravecky said he underwent eight weeks of radiation therapy that left his arm virtually immobile and subject to painful infections. Recent tests, he said, did not detect any cancer cells.

He said he will meet with doctors at Sloan Kettering Memorial Cancer Center in New York Friday to examine the results more closely. . . .

A rare autograph of Shoeless Joe Jackson, the illiterate, banned baseball player whose legend has grown with the help of Hollywood, sold for $23,100 at an auction in New York.

It was the second-highest price ever paid for a signature not attached to a document, and it makes Jackson's autograph worth more than Babe Ruth's, Ty Cobb's or even Abraham Lincoln's, experts said.

The signature of Button Gwinnett, a signer of the Declaration of Independence, set the record for an unattached signature, selling for about $56,000.