Nicola Adams' 'dream fight' in Las Vegas was called off last night due to a problem with her opponent's pre-fight medical.
The double Olympic gold medallist from Leeds tweeted to say she was 'devastated'. It would have been her third professional fight.
Adams was due to fight Hungarian Alexandra Vlajk in a super-flyweight bout on the Saul Alvarez v Gennady Golovkin undercard.
Vlajk, 37, has won 11 of her 17 contests and has stopped two opponents since turning professional in 2013.