In mixed martial arts, Penn has competed in the Featherweight, Lightweight, Welterweight, and Middleweight divisions. He is also a former lineal champion at welterweight (twice) and light middleweight. The super lightweight, super welterweight, super middleweight, and cruiserweight classes were added in July 2017. The season showcased a heavyweight, welterweight, lightweight and featherweight tournament. Season 4 showcased tournaments in the featherweight, lightweight, welterweight and light heavyweight divisions. Silva therefore became the inaugural Jungle Fight Welterweight champion. He won the fight via unanimous decision to become the new UFC Welterweight Champion. This was an IBF eliminator for the number 2 spot in their welterweight contender rankings. However, Pacquiao chose to fight former IBF welterweight title holder Joshua Clottey instead. He is a former NWA World Welterweight and UWA World Lightweight Champion. That was followed by a victory over former junior welterweight world champion Sharmba Mitchell. I have agreed to a Nov. 5 fight with reigning WBO welterweight champion Jessie Vargas. He currently fights as a welterweight for the Ultimate Fighting Championship. This ended Armstrong's reign as Welterweight Champion. Kostya Tszyu for the IBF light welterweight title.