LOS ANGELES » Heavyweight champion Fabricio Werdum says he is pulling out of his title fight at UFC 196 on Feb. 6.

Werdum announced his decision through social media today, one day after Stipe Miocic replaced Cain Velasquez as Werdum’s opponent at the MGM Grand Garden Arena in Las Vegas.

The UFC didn’t immediately confirm Werdum’s decision or announce a replacement fight for the main event of its traditional Super Bowl weekend pay-per-view show.

Werdum says he has a foot injury and a back injury, but planned to go through with his rematch against Velasquez. Werdum beat Velasquez last year to claim the title.

Velasquez dropped out of the fight Sunday, citing a back injury. He was swiftly replaced by Miocic, a veteran contender who beat Andrei Arlovski by opening-minute knockout last month.