Tyson Fury has had his licence to fight temporarily revoked the day after he gave up his world heavyweight titles to focus on mental health problems.
Fury, 28, has not fought since beating Wladimir Klitschko in November 2015 and has twice withdrawn from rematches.
The British Boxing Board of Control confirmed his licence was suspended “pending further investigation into anti-doping and medical issues”.
Fury was charged with a doping offence by the UK’s anti-doping body in June.
On Wednesday, Fury vacated his WBO and WBA world heavyweight titles, saying he was unable to defend them because of his health.
He will now have to meet with the BBBofC before a decision is taken on whether he can fight again.
He has an appeal hearing for his doping offence scheduled for November.
Earlier this month, Fury appeared to announce his retirement on Twitter, before backtracking several hours later.
He later revealed in an interview with Rolling Stone magazine that he was taking cocaine to help deal with depression.