Bellator MMA has bolstered its heavyweight division by signing undefeated (9-0) contender Ali Isaev to a deal. An accomplished wrestler, Isaev competed in the 2008 summer Olympics in freestyle wrestling where he placed 7th overall. Eight years after the Olympic games, Isaev made his professional mixed martial arts (MMA) debut under the Fight Nights Global banner in his home country of Russia where he racked up a record of 4-0. He then signed a deal to compete for Professional Fighters League (PFL) in 2019 as a participant in the 265-pound tournament and won four in a row in the span…