The Scot, who was lucky to hold onto his strap after the judges controversially scored the fight as a draw, said in his post-fight interview that the damage was done in the second round.
Jaw defo broken, in agony here. Honestly dont know how I managed to get through that fight. Thanks to every1 for their support tonight— Ricky Burns (@ricksterko) September 8, 2013
Meanwhile, Matchroom Sport promoter Eddie Hearn also took to Twitter to reveal the extent of the injury.
With Ricky in hospital -it's not good-clean break to jaw from 2nd round - staying in hospital and operation tomorrow pic.twitter.com/Dz85PivvRd— Eddie Hearn (@EddieHearn) September 8, 2013
Beltran has called for a rematch to take place in the USA.