Early career Mucitelli started his professional career in 2010. After two victories, he signed with
Bellator.
Bellator Fighting Championships Mucitelli made his debut on August 24, 2012 at
Bellator 73 against then undefeated
Matt Van Buren, taking the fight on one week's notice. He won via submission in the first round. Mucitelli was scheduled to face Dan McGuane on November 16, 2012 at
Bellator 81. However, the fight was scrapped after the negative impact caused when a felony charge of involuntary manslaughter committed in July 2005 by McGuane was exposed in the internet. Mucitelli instead faced Shark Fights veteran Matt Uhde in a
catchweight bout, which he won via submission in the first round. Mucitelli faced Brent Dillingham on March 21, 2013 at
Bellator 93. For the fifth time in a row he won in the first round, again via submission. Mucitelli faced Jeff Nader on September 7, 2013 at
Bellator 98. The fight ended in a no contest at 1:30 in the first round due to an accidental eye poke that rendered Nader unable to continue. Mucitelli face Ryan McCurdy on November 8, 2013, at
Bellator 107. This marked Mucitelli's first fight out of the first round, as it went the distance with Mucitelli pulling out a hard fought unanimous decision (29–28, 29–28, 29–28). Mucitelli faced
Liam McGeary in the 2014 Summer Series Light Heavyweight Tournament Quarterfinals at
Bellator 118 on May 2, 2014. He lost via first-round knockout. Mucitelli then faced Mark Griffin on September 5, 2014 at
Bellator 123. Mucitelli won the fight via armbar submission in just 37 seconds of round one. ==Mixed martial arts record==