Patrick Kenneth Martin (born May 23, 1983), better known by his ring name Alex Shelley, is an American professional wrestler and musician. He is signed to All Elite Wrestling (AEW), where he performs as one-half of the Motor City Machine Guns alongside Chris Sabin. In music, he is the vocalist and guitarist of the rock band GRPPLNG. He is widely known for his tenure in Total Nonstop Action Wrestling (TNA), where he is a former TNA 2006 World X Cup Tournament winner, a former one-time TNA World Heavyweight Champion, former one-time TNA X Division Champion, former three-time TNA World Tag Team Champions (with Sabin as Motor City Machine Guns), and won the Gauntlet for the Gold in 2008. He is recognized as the tenth Triple Crown winner in TNA, having won the TNA World Championship, the X Division Championship, and the Tag Team Championship. Martin first rose to fame on the independent circuit, and gained breakout success while performing for Ring of Honor (ROH), having won the ROH World Tag Team Championship with Sabin. He is also known for his tenures in Japan with Pro Wrestling Zero1-Max and New Japan Pro-Wrestling (NJPW), where in the latter promotion, he is a former three-time IWGP Junior Heavyweight Tag Team Champion alongside Kushida as one-half of the Time Splitters, and a former Strong Openweight Tag Team Champion as one-half of the Motor City Machine Guns. From 2024 to 2026, Shelley performed in WWE and would win the WWE Tag Team Championship with Sabin. Shelley, alongside Sabin, signed with AEW in the latter year.