Slayer has been forced to postpone it's Unholy Alliance tour by 11 days because of surgery on their bass player Tom Araya. Araya recently had surgery on his gall-bladder and continues to have soreness, so he has been advised to take it easy and rest himself for about six weeks. His condition is a genetic one and he did damage to his gall-bladder through drugs, alcohol, etc. Slayer should be back on the road soon though.

Here is a statement by Araya:

"My doctor wants me to take it easy. He told me not to do anything stupid. No serious lifting. ... I couldn't lift anything heavier than five pounds the first week (following the operation), and you increase it by five pounds each week. So, by the time we hit the road, I should be able to carry my bass."

Source:	blabbermouth.net
Band profile:	Slayer