By Matt Boone on May 1, 2007 at 4:00 PM EST

What was originally planned to be a long-term title reign for The Undertaker could come to a quick halt, reports The Wrestling Observer.

The wrestler suffered a biceps tear prior to Sunday's Backlash PPV; following the match, he was in "tremendous pain."

The muscle is noticeably rolled up, which implies a complete tear off the bone and a six-to-eight month recovery period.

Undertaker committed to working a more regular WWE schedule for the purpose of long-term title reign, but if the injury is as serious as most believe, he'll be forced to drop the belt soon.

He was to be evaluated by Dr. James Andrews Tuesday afternoon. After determining if Undertaker will be required to drop the belt, WWE will then have to decide whether or not it can safely be done via a match.

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