Cain Velasquez is once again out of his title fight with UFC heavyweight champion Fabricio Werdum. Stipe Miocic will replace Velasquez as the heavyweight crown will still be up for grabs at UFC 196. UFC President Dana White announced the news on Sunday via Twitter.

Cain Velasquez is out with a back injury. Stipe vs Werdum for the heavyweight championship February 6th. pic.twitter.com/vPRJYJvOjL — Dana White (@danawhite) January 24, 2016

The two heavyweights were scheduled to fight for a second time on Feb. 6 at UFC 196 in Las Vegas, Nev. However, a back injury forced the former UFC heavyweight champion Velasquez to withdraw from the bout.

Velasquez addressed the injury with a post on Facebook. The former champion said the injury was too much to bear. He also apologized to Werdum for having to withdraw from the bout.

"Training camp has been difficult for the last few weeks, but sometimes no matter how much the heart and mind want to fight through an injury, healing has its own timeline. We thought we'd get through it, but we had to face the truth that it wasn't going to be OK in time to fight," Velasquez writes. "All of us fighters have all fought injured at one time or another, but I can't ignore this injury, as my doctor has indicated that not addressing the problems with my sciatic nerve could have longer-term consequences.

"Fabricio, I hope that you accept my sincere apology. I understand how you may think this is an excuse. From one professional to another, I can tell you I was committed and looking forward to competing with you again. I greatly respect you as a fighter and man, and we will meet soon."

I'm sure you've heard the news that I won't be able to fight at UFC 196. I can't begin to tell you how disappointed I am... Posted by Cain Velasquez on Sunday, January 24, 2016

Miocic (14-2) is currently 5-1 in his past 6 outings including wins over top contenders such as Andrei Arlovski and Mark Hunt along with a loss to former UFC heavyweight champion Junior dos Santos.

This bout will mark Werdum's first title defense since taking the heavyweight strap away from Velasquez at UFC 188.

UFC 196 takes place at the MGM Grand Garden Arena in Las Vegas, Nevada. The main card airs live on pay-per-view.