Haddad started wrestling in 2001, and began appearing for WWE in 2002 as Aaron Stevens on Heat. From 2004 to 2006, Haddad wrestled in WWE's developmental territory, Ohio Valley Wrestling (OVW). In 2006, Haddad reappeared on the WWE main roster as Idol Stevens, teaming with KC James and allying with Michelle McCool. In 2007, Haddad was released from WWE, first embarking on a return to OVW, no longer WWE's official developmental territory, in 2008 and then from 2009 to 2010, wrestling in Puerto Rico for World Wrestling Council (WWC).
Signing again with WWE in 2010, he was assigned to a developmental territory, Florida Championship Wrestling, where he adopted the Damien Sandow moniker. In 2012, Sandow returned to WWE's main roster as an arrogant intellectual. In 2013, Sandow won the Money in the Bank match for a World Heavyweight Championship opportunity, and became the first to lose the cashed-in title match. In 2014, Sandow became a comedic impersonator, leading up to an alliance with The Miz, as his stunt double Damien Mizdow. The duo won the WWE Tag Team Championship while Mizdow became one of WWE's most popular wrestlers. In 2015, Sandow lost the breakup feud to Miz, was put into a team with Curtis Axel, and then taken off television. After his return with sporadic appearances, Sandow was released in 2016.
On August 10, 2016, Total Nonstop Action Wrestling (TNA), released a promo teasing the acquisition of Stevens. On the August 11, 2016 episode of Impact Wrestling, Stevens made his debut under the ring name Aron Rex, cutting a promo in the ring and confronting the TNA World Heavyweight, X Division and King of the Mountain Champion Lashley at the end of the show.
- Chaotic Wrestling Heavyweight Championship
- Chaotic Wrestling Tag Team Championship
- Florida Championship Wrestling 15 Championship
- Florida Championship Wrestling Tag Team Championship
- International Wrestling Association Hardcore Championship
- Ohio Valley Wrestling Heavyweight Championship
- Ohio Valley Wrestling Southern Tag Team Championship
- Ohio Valley Wrestling Television Championship
- World Wrestling Council Heavyweight Championship
- World Wrestling Council World Tag Team Championship
- WWE Tag Team Championship
- TNA Grand Championship