Daivari made his debut for Professional Championship Wrestling in Arlington, Texas, at PCW's "Heroes 2 Legends" event in November 2007. He wrestled J.T. Lamotta and "Jiggle-O" James Johnson in a triple threat match for the PCW Cruiserweight Championship, which Lamotta won. He returned to PCW on February 23, 2008, at PCW's "Big Bang '08" event to again wrestle a triple threat match for the PCW Cruiserweight Championship, this time against Robert Evans and Aaron Eagle, who won and became the new champion. On September 6, 2008, it was announced by The Bussey Brothers that Daivari would return on September 20, 2008, to team with them to take on Aaron Eagle and a partner of his choosing. Eagle had chosen Action Jackson to be his tag team partner. However, Jackson was injured at the hands of Mace Malone. PCW World Heavyweight Champion, Mike Foxx, who was supposedly suspended and also Eagle's main rival, surprisingly saved Eagle from an attack and announced he would be Eagle's partner. The stipulation was that if Eagle did not win, he could never get another PCW World Heavyweight Championship shot again. On September 20, Daivari and The Busseys defeated Eagle and Foxx when Foxx turned on Eagle and Daivari debuted his new finisher move, the "WMD" – "Weapon of Mass Destruction" (a DDT to a kneeling opponent), for the victory. Afterwards, Foxx announced he would give Eagle one final title shot at "Sick 'n' Twisted" on October 11.