Fedor Emelianenko (33-4) has his next opponent.

The longtime PRIDE champion will meet former UFC heavyweight-title challenger Pedro Rizzo (19-9) on June 21, M-1 official Evgeni Kogan today announcedВ via Twitter.

Fighters such as Bobby Lashley and Rolles Gracie previously were rumored for the slot, but it'll instead go to 37-year-old Rizzo.

The June 21 event, which is expected to be an M-1 show, takes place at the Ice Palace in St. Petersburg, Russia. It'll likely air on pay-per-view.

Emelianenko recently left Strikeforce following consecutive losses to Fabricio Werdum, Antonio Silva and Dan Henderson. The Russian, who once won 27 consecutive fights (with one no-contest), has competed overseas, where he picked up victories over Jeff Monson and Satoshi Ishii in late 2011. The 35-year-old now fights for the first time in 2012.

Rizzo, a Brazilian who made his MMA debut nearly 16 years ago, fought for the UFC heavyweight title three times but came up short in each effort. A fan favorite, Rizzo now returns to the cage after a two-year layoff. Most recently, he picked up a pair of TKO victories over Gary Goodridge and Ken Shamrock in 2010.

No other event details have been announced for the show.