Joe Warren vs. Darrion Caldwell to headline Bellator 151 in March

A pair of world-class wrestlers will meet in the Bellator cage.
Former two-division champion Joe Warren will meet rising star Darrion Caldwell in the main event of Bellator 151 on March 15 at WinStar World Casino in Thackerville, Okla., the promotion announced Friday.
Warren (13-4), a former world champion wrestler, has won six of his last seven fights and coming off a unanimous decision win over L.C. Davis in September. After that bout, Warren tested positive for marijuana and was handed a 90-d