Bellator MMA will determine a new owner of the lightweight belt recently vacated by Eddie Alvarez, and it’ll come in the co-headliner of “Bellator 131: Tito vs. Bonnar.”

Bellator officials today announced that interim champ Will Brooks (14-1 MMA, 6-1 BMMA) and former titleholder Michael Chandler (12-2 MMA, 9-2 BMMA) will meet at the Nov. 15 event for the undisputed title.

The event takes place at Valley View Casino Center in San Diego. The main card, including an announced headliner between veteran light heavyweights and UFC Hall of Famers Stephan Bonnar (15-8 MMA, 0-0 BMMA) and Tito Ortiz (17-11-1 MMA, 1-0 BMMA), airs on Spike TV following prelims on Spike.com.

Brooks, an honorable mention in the USA TODAY Sports/MMAjunkie MMA lightweight rankings, first defeated No. 9 Chandler via split decision at Bellator 120 in May to win the interim title.

However, with Alvarez’s recent move to the UFC, the undisputed title is now up for grabs in the rematch.

Brooks looks for his sixth straight win at the event. After filling in for injured Alvarez at Bellator 120, the 27-year-old Season 9 tournament winner got the shot at Chandler and pulled off the upset to claim his interim belt.

The defeat was the second straight setback for Chandler, who lost his belt to Alvarez in his previous outing. Both defeats, though, have come via split decision.

For more on Bellator 131, check out MMA Rumors section of the site.