Conlan had been leading on the scorecards.
Michael Conlan suffered a final round KO against Leigh Wood on Saturday night in Nottingham.
The Irish boxer was ahead on the scorecards and comfortably the superior boxer in the bout.
Conlan, however, was knocked out of the ring in the final round.
Wood mounted an incredible comeback after being outboxed throughout the contest to score a knockdown in the 11th round.
In the 12th and final round, he continued to pile pressure on his opponent and backed Conlan onto the ropes. Wood landed a series of punches before Belfast boxer fell from the ring.
The Nottingham fighter retained the WBA featherweight world title via TKO, but the celebrations were instantly subdued due to concerns over Conlan’s condition.
The Irish boxer was treated by paramedics at ringside after he fell from the ring. Wood did his best to calm the crowd while his opponent received treatment.
Conlan, 30, was taken backstage to be given further medical attention and has since been moved to hospital.
According to Frank Smith, CEO of Matchroom Boxing, Conlan is ‘conscious and stable.’
Michael Conlan arrived at hospital, conscious and stable 🙏
— Frank Smith (@FrankSmith) March 13, 2022
The Irish boxer was later given the all-clear in the hospital and released an update from his hospital bed.
Conlan congratulated Wood on his win and promised to return to the ring.
"CT scans are all clear. Congrats to Leigh Wood and his team"
An update from @mickconlan11 after his defeat to Leigh Wood last night ⤵ pic.twitter.com/ZDH7MH4dwT
— BBC SPORT NI (@BBCSPORTNI) March 13, 2022