Looks like Bellator Season 4 Lightweight Tournament winner Michael Chandler won't be cashing in on his 155-pound title shot just yet.

That's because reigning division champion Eddie Alvarez has been injured and forced to withdraw from their Bellator 54 headliner on Oct. 15 from the Boardwalk Hall Ballroom in Atlantic City, New Jersey.

From today's announcement:

"Eddie suffered an injury that will keep him out of our October 15th show at Boardwalk Hall in Atlantic City," said Bellator Chairman & CEO Bjorn Rebney. "Eddie Alvarez has a huge heart and if there was any way for him to fight on the 15th, I know he would. Ed's in spectacular condition, so both of us are hopeful that this fight can potentially still occur later this fall."

Bellator 54 will now feature the semifinals of the promotion's middleweight tournament, as well as Bellator Bantamweight Champion Zack Makovsky in a non-title super fight against former UFC veteran Ryan Roberts.

Alvarez, widely considered the world's best 155-pounder not competing inside the Octagon, was last seen defending his strap in a five round unanimous decision win over current featherweight tournament finalist Pat Curran at Bellator 39 back in April.

Chandler, an accomplished wrestler out of Xtreme Couture, blew through the Bellator lightweight tournament with wins over Marcin Held, Lloyd Woodard and Patricky Freire.

The promotion is hopeful it can reschedule this 155-pound title fight before year's end.

Bellator 54 begins at 7 p.m. ET on Oct. 15 and can be seen live via Spike.com. The televised portion of the event will air at 9 p.m. ET on MTV2 and in commercial-free HD on EPIX.