Junior middleweight boxer Patrick Day is in a coma after emergency brain surgery following a 10th-round knockout on Saturday night.

Day,27, was dominated throughout his bout with Charles Conwell at Wintrust Arena in Chicago, leading to a left hook 1:46 into the round that left Day unconscious and in need of medical attention.

He was rushed out of the ring on a stretcher and suffered a seizure. Day was taken to Northwestern Memorial Hospital, where he went into a coma, with at least one outlet reporting it was medically induced.

Day, a Freeport, Long Island native, was knocked down twice by Cromwell in the match during the undercard matchup ahead of the Oleksander Usyk-Chazz Witherspoon fight.