Cage Warriors featherweight champion Conor McGregor (11-2) will have to wait a while longer to meet rival Jim Alers (9-1).
The fighters were set to headline the year-end Cage Warriors 51 event, but Alers was forced off the card with a hand injury.
Stepping into his place and the lightweight title fight is fast-rising Slovakian fighter Ivan Buchinger (21-3), officials today announced.
Cage Warriors 51 takes place Dec. 31 at The Helix in the Irish capital of Dublin. The event's main card streams live on MMAjunkie.com (www.mmajunkie.com) following Facebook prelims.