As expected, Conor McGregor isn't the only Irish fighter scheduled to fight in Boston next year.
Holohan (10-1), nicknamed "The Hooligan," suffered the first loss of his career last month when he dropped a unanimous decision to Chris Kelades in Halifax, N.S. Prior to that loss, Holohan defeated Josh Sampo via first-round rear-naked choke in his UFC debut in Dublin this summer.
"I’m so happy to be a part of the UFC card in Boston," he said in a statement provided by the promotion. "We are going to recreate the same atmosphere we had in Dublin; it’ll be Dublin in Boston."
"As I always say to the fans, I’m one of them and I know with the Boston crowd it will be the same, like home away from home. I know I’m the job to start that party over in Boston."
Howell (13-8) lost his UFC debut to Ray Borg in June. That loss snapped a six-fight winning streak for the native of Ada, OK.
UFC Fight Night: McGregor vs. Siver is set for Jan. 18 at the TD Garden in Boston.