Early career Einemo made his professional MMA debut in the year 2000. He fought for a number of promotions in
Finland and the
Netherlands, quickly amassing an undefeated record of 4–0. He made his Japanese debut in 2003 for the
Shooto promotion in 2003. Einemo did not compete from 2003 to 2006 due to complications of contracting a
flesh-eating bacterial infection on his left foot following surgery. He completely recovered and returned to fighting in early 2006. He experienced his first professional loss in
PRIDE Fighting Championships where he lost to
Fabrício Werdum by unanimous decision at
Pride 31.
Ultimate Fighting Championship On March 7, 2011, Einemo signed with the
UFC to join their Heavyweight Division. Einemo was scheduled to make his UFC debut against
Shane Carwin on June 11, 2011 at
UFC 131. However, once
Brock Lesnar pulled out of his fight against
Junior dos Santos after again suffering with
diverticulitis, Carwin stepped in to take Lesnar's place in the main event. Einemo instead fought fellow UFC newcomer
Dave Herman. Einemo lost via TKO (punches) at 3:19 of round 2. This fight earned him
Fight of the Night honors. On August 3, 2011, Golden Glory announced that Einemo had been released from his contract by the UFC. The UFC later reversed the decision, reinstating Einemo. In his second UFC fight, Einemo faced
Mike Russow on January 28, 2012 at
UFC on Fox: Evans vs. Davis. He lost the fight via unanimous decision. He was subsequently released from the promotion. ==Championships and accomplishments==