Jul 21, 2012; Calgary, AB, CANADA; Matt Riddle celebrates defeating Chris Clements (not pictured) welterweight bout of UFC 149 at the Scotiabank Saddledome. Mandatory Credit: Anne-Marie Sorvin-USA TODAY Sports

UFC veteran Matt Riddle retires from MMA

Multiple failed drug tests for marijuana led to the end of promising welterweight Matt Riddle’s UFC career and it looks like he’ll never get a chance to attempt a return to the top promotion in the world.

Riddle signed a multi-fight deal with Legacy Fighting Championships after leaving the UFC, but the promotion came to an agreement with Bellator that would have allowed him to compete in the upcoming welterweight tournament.

Unfortunately for Riddle, he suffered a rib injury that forced him to withdraw from the scheduled match up.

Following the injury, Bellator told Riddle they would be unable to schedule him a fight later this year, so he has apparently decided to call it quits with claims that he simply cannot afford to keep training without getting in the cage.

“I’m retiring from MMA today, I cracked my rib and I can’t fight sept 20th @BellatorMMA can’t give me a fight this year so I can’t afford it!” Riddle wrote on his Twitter account.

The announcement cites a much larger problem for the smaller mixed martial arts promotions.

Fighters are unhappy whenever they cannot compete as much as possible and that could cost the sport some young up and coming talent.

It is likely that Riddle will have a change of heart and return to the sport relatively soon, but for now he is ready to walk away at just 27 years old.

Dick's Sporting Goods presents "Hell Week":

Tags: Matt Riddle MMA UFC