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.
Soap opera twists and fatherly love - but what next for Eubank and Benn?
All three judges scored the contest 116-112 following a bout featuring wild aggression from both fighters, albeit with neither landing the telling blow.
Chris Eubank Sr surprisingly arrived the venue with his son. The pair had supposedly been estranged for years and Eubank Sr had criticised the match-up.
Eubank Sr beat Conor Benn's father, Nigel Benn, in 1990, before a contentious draw three years later.