Sonnen (photo via telegraph.co.uk)

By FCF Staff

Chael Sonnen remained in the MMA spotlight recently by calling out Wanderlei Silva on “UFC Tonight”, and although the former PRIDE champ appeared to accept the challenge, the bout apparently isn’t done just yet.

Sonnen took to Twitter recently and directed the following post at Silva:

Wand- you have 24 hours to accept. If you do, I will donate 10% of my purse to help schools in your hometown of Curitiba .. I mean, VEGAS.

After Sonnen’s original challenge, which came just days after he was quickly stopped by Jon Jones at UFC 159, Silva tweeted “let’s go” and warned the outgoing fighter that “real men talk face to face.”

Due to the attendance and ratings draw a Silva-Sonnen bout would likely pull in, one would think this bout will get signed at some juncture. There has been speculation that the UFC might look to place the fight on the upcoming, August 17th, UFC on FOX Sports 1 card.

Silva has yet to book a fight since he knocked out Brian Stann at UFC on FUEL TV 8 in March.