Matthew Polinsky is an American sports commentator, university professor, and retired professional wrestler. He is signed to WWE, where he performs under the ring name Corey Graves as the color commentator on the Raw brand as well as the English play-by-play commentator in its sister promotion, Lucha Libre AAA Worldwide. As a former in-ring competitor, he is a one-time NXT Tag Team Champion, and won the WWE 24/7 Champion once even though he had been retired from in-ring competition.