Daron Cruickshank picked up a first round knockout victory over Kochi Matsumoto during last weekends Rizin 10 event.
Shortly after knocking out his opponent, a celebrating Cruickshank would give Matsumoto the middle finger.
Cruickshank would take to Instagram after the event to issue an apology for giving the finger after his fight:
The UFC veteran has seen a measure of success in Rizin, picking up a trio of wins in the promotion over the aforementioned Kochi Matsumoto, Shinji Sasaki and Andy Souwer. Cruickshank also won six of thirteen times during his UFC run, with some notable wins coming over Yves Edwards, Erik Koch and Anthony Njokuani.
There is no word yet on when Cruickshank will compete again, while nobody from Rizin or Matsumoto's camp have issued a statement on his post-fight antics.