Matthew Polinsky (born February 24, 1984) is an American wrestling color commentator and retired professional wrestler currently signed to WWE as a commentator and analyst for Raw and SmackDown under the ring name Corey Graves. He is a former NXT Tag Team Champion with Adrian Neville and a former WWE 24/7 Champion. Polinsky is also known for his work on the independent circuit under the ring name Sterling James Keenan.
Polinsky was born and raised in Pittsburgh, Pennsylvania, the son of a Hungarian couple. He attended college and has a degree in marketing.
Polinsky chose his ring name the night before his first professional wrestling match, and picked the name "Sterling James Keenan" as a tribute to Sterling Sharpe, Polinsky's favorite American football player as a child, and Maynard James Keenan of the band Tool.

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