NASHVILLE, Tenn. — The baseball commissioner's office and players' association have discussed how to handle possible discipline for some players linked to the purchase of banned drugs, but penalties have not yet been set. reported Wednesday that the union is negotiating with Major League Baseball on a possible 10- to 15-day suspension for outfielder Jose Guillen. The San Francisco Chronicle reported last month that Guillen ordered more than $19,000 worth of drugs — three kinds of human growth hormone, two types of testosterone and the steroids stanozolol and nandrolone — from the Palm Beach Rejuvenation Center between May 2002 and June 2005.

Baseball banned HGH in January 2005. The penalty for a first offense that year was a 10-day suspension.

"I interviewed Mr. Guillen. I've had an ongoing dialogue with the Major League Baseball Players Association regarding the relevant facts and circumstances," said Rob Manfred, baseball's executive vice president of labor relations. "We do not, however, negotiate discipline. The commissioner will determine what discipline, if any, is appropriate when I conclude my investigation."

Michael Weiner, the union's general counsel, declined comment.

Several others have been accused in media reports of buying HGH, among them Los Angeles Angels outfielder Gary Matthews, Cleveland pitcher Paul Byrd, St. Louis outfielder Rick Ankiel and free-agent infielder Jerry Hairston Jr.