World Series of Fighting’s athlete roster continues to grow, as the Las Vegas-based promotion has added light heavyweight Razak Al-Hassan (12-4), lightweight Luis Palomino (21-9) and middleweight Kelvin Tiller (6-0).

MMAjunkie today confirmed with WSOF officials that all three fighters have signed exclusive, multi-fight deals with the promotion and will make their decagon debuts in 2014.

“Razor” Al-Hassan is a 31-year-old Iowa native who currently trains at Milwaukee’s Red Schafer Mixed Martial Arts. A two-time UFC veteran who will always be remembered for a gruesome 2008 technical submission loss to Steve Cantwell, Al-Hassan has gone 5-2 in his seven fights since being released from the promotion, including a first-round submission win in his most recent outing.

“Baboon” Palomino is a 33-year-old Peruvian native who currently makes his home in Florida. A six-time Bellator MMA veteran, Palomino has been fighting for the Sunshine State’s Championship Fighting Alliance promotion, where he came up just short in a January bid for that promotion’s lightweight belt.

Sporting one of the more memorable nicknames in MMA, “The Mama’s Boy” Tiller is an undefeated prospect from Kansas who has earned five of his first six career wins by stoppage. Tiller fought three times under the Bellator MMA banner. Four of his six wins have come by submission.

For more on WSOF’s upcoming schedule, stay tuned to the MMA Rumors section of the site.

(Pictured: Razak Al-Hassan)