Roger Bowling has been defeated only once as a professional MMA fighter.
The loss came at the hands of Bobby Voelker in late 2010, and with the knockout victory, Voelker avenged a decision loss to Bowling that took place five months earlier.
It's been nine months since their second meeting, and Bowling now has the opportunity to avenge the loss when the trilogy takes place Friday at in the headliner of Strikeforce Challengers 17.