Boxing fans have been treated to some incredible fights this year, starting with David Haye vs Tony Bellew in March and followed by Anthony Joshua vs Wladimir Klitschko in April.
Bellew was the shock winner at the O2 Arena when he stopped Haye - who suffered a hasty Achilles injury early on - in the 11th round via stoppage.
One month later Joshua beat Klitschko with an 11th-round TKO, while Floyd Mayweather and Conor McGregor came to blows in Las Vegas in August.
Joshua then defended his heavyweight titles against Carlos Takam and since then everyone has been looking forward to Haye and Bellew's rematch on December 17.
The pair agreed to round two on September 29, again at the O2 Arena, but the fight has reportedly been postponed.
ESPN's Dan Raphael claims Haye has been forced to pull out of the rematch with Bellew due to an arm injury that will require surgery.
He wrote: "Former heavyweight world titleholder David Haye (28-3, 26 KOs) has withdrawn from his rematch against Tony Bellew (29-2-1, 19 KOs), whom he was supposed to face Dec. 17 at the O2 Arena in London, a source with direct knowledge of the situation told ESPN on Monday.
"Haye, according to the source, suffered an arm injury and is having surgery. Official announcement of the postponement of the fight is expected later Monday."
It's the news no boxing wanted to hear. The Independent have added that Haye sustained the injury while skipping.
An announcement is imminent, but Bellew appears to have confirmed the rumours on Twitter with a simple yet conclusive tweet (see below).
BELLEW'S SAD TWEET
More to follow...