Chris Eubank Jr has been discharged from hospital after he was admitted as a precaution following his victory over Conor Benn on Saturday.
Eubank was admitted as part of a standard procedure for boxers after a gruelling bout, with promoter Ben Shalom saying he was having "precautionary checks".
The 35-year-old left hospital on Monday.
Eubank beat Benn by unanimous decision in a thrilling 12-round middleweight fight at London's Tottenham Hotspur Stadium.
Posting on social media on Monday, Eubank said: "Well it took nearly three years but we finally got the job done.
"Big shout out to everyone that supported the fight on Saturday and made it the once-in-a-lifetime event that it was. Without the fans none of this is possible, thank you."