Peter Joseph "PJ" Polaco (born October 16, 1973) is a retired American professional wrestler, best known for his appearances with Extreme Championship Wrestling (ECW) and the World Wrestling Federation (WWF) under the ring name Justin Credible. He is also known for his earlier stint with the WWF under the ring name Aldo Montoya. Polaco is a one-time world champion, having won the ECW World Heavyweight Championship once. His first major stint was in the WWF as Aldo Montoya, where he competed as a mid-carder between 1994 and 1997. He got his biggest exposure when he joined ECW in 1997 as Justin Credible and enjoyed a successful career. He began a two-month winning streak before feuding with the company's top wrestlers for the next two years. He formed Impact Players with Lance Storm in 1999 and the duo won the World Tag Team Championship twice in 2000. Later that year, he won the World Heavyweight Championship at CyberSlam and held it for five months. He remained in the title contention until the company folded in 2001 and competed in the last match of ECW. He headlined the company's flagship event November to Remember twice. He then returned to WWF as a member of X-Factor and later The Alliance during the Invasion angle. He later won the Hardcore Championship eight times before departing in 2003. He briefly returned to the renamed WWE in 2006 as part of the revived ECW brand. Professional wrestling career Early career (1992–1994) Polaco traveled to Alberta in 1992 to train at the Hart Brothers Training Camp, nominally run by Keith Hart. He was mainly trained by his future tag team partner, Lance Storm, and Chris Jericho, who both graduated the program the year before. After wrestling unpaid as P.J. Walker, and setting up the rings there for a time, he began working for New England-based wrestling promotions. Polaco began wrestling for the World Wrestling Federation (WWF) as an enhancement talent. His first match was a loss to Lex Luger on the March 1, 1993 episode of Monday Night Raw. He continued to wrestle sporadically in WWF throughout 1993 and 1994. He even scored an upset victory against Irwin R. Schyster on the September 20, 1993 episode of Raw, after a distraction by Razor Ramon. He also worked a few matches as an enhancement talent in World Championship Wrestling (WCW) in 1994. World Wrestling Federation (1994–1997) After spending