MLB commissioner Rob Manfred said the league expects to have a decision on possible discipline against Angels outfielder Josh Hamilton until after Opening Day, according to the Associated Press.

"I think that we'll have something on Hamilton in relatively short order -- probably has been a little slower just because he's not available to play," Manfred said Wednesday on SiriusXM radio.

Hamilton, who was suspended from baseball from 2004-06 for issues related to cocaine and alcohol abuse, admitted to MLB he experienced a relapse a few months ago, according to CBSSports.com Baseball Insider Jon Heyman.

It remains to be seen if MLB will have Hamilton enter a rehabilitation program following a drug relapse or face a suspension.