Corey Graves is a commentator and former American wrestler signed to WWE, where he plays the role of commentator on Raw.

In WWE he won the 24/7 Championship once and the NXT Tag Team Championship once.

Matthew Polinsky made his March 22, 2000 debut against Orion in the NWA East/Pro Wrestling eXpress before joining the International Wrestling Cartel in 2002, where he made his debut defeating none other than CM Punk. Keenan won his first federation title, the IWC Heavyweight Championship on November 1, 2003, by defeating Dennis Gregory.

After retiring, he serves as a commentator on NXT and Monday Night Raw and is the host of the Raw pre-show. on January 28, 2017, during NXT TakeOver: San Antonio, Graves announced his farewell to the yellow show, dedicating himself only to the commentary of Raw and WWE 205 Live.

On September 4, WWE announced that Graves will be the new commentator on the show to replace JBL starting from the September 5 episode of SmackDown, also specifying that he will continue to be the commentator on Raw and that he will in turn be replaced by Nigel McGuinness at 205 Live.