From MMA Weekly:

"Bobby Lashley is a phenomenal athlete and a very impressive fighter who wants to make a big name for himself in mixed martial arts,” noted MFC Owner/President Mark Pavelich. “He is a very exciting prospect and he will get a monumental opportunity to break into the spotlight at MFC 21.”

Also, it seems that he'll be debuting his nickname as well- Bobby "The Dominator" Lashley. I haven't seen any dominating from Lashely, but the name fits his appearance I guess.  Lashley's opponent will be Mike Cook (7-3) a Frank Shamrock trained fighter.

So looks like "The Dominator" will be busy this year as he already has 2 upcoming fights, May 15th against Mike Cook and June 27th against Bob Sapp.