A key welterweight battle has been added to this June’s UFC On FX III card as Mike Pierce will do battle with Carlos Eduardo Rocha. Pierce, who recently saw an end to a four fight losing streak, is coming off of a loss to Josh Koscheck at UFC 143. Rocha is fighting for the first time in well over a year, saw his undefeated streak end at the hands of Jake Ellenberger at UFC 126. UFC On FX III takes place on June 8th, but no venue or main event has been announced for the card at this time.