Brock Lesnar To Fight At UFC 200

http://espn.go.com/mma/story/_/id/15961833/brock-lesnar-return-ufc-200-fighter-yet-named

Apparently this is part of a deal with WWE so Brock is NOT leaving WWE to do this.  No word on if this is one off or part of a bigger deal.  Also no word on if WWE will get a big UFC name for an appearance in exchange.