Ready for our first quarterfinal matchup? We've got a tough one for you right off the bat, pitting an original master against a technical virtuoso.

The legendary Geezer Butler has been steamrolling over the competition ever since Round 1 of our Greatest Metal Bassist competition. Having already taken out Overkill's D.D. Verni and Anthrax's Frank Bello, the Black Sabbath bassist now faces his toughest matchup yet.

Dream Theater's vituosic bassist John Myung has also been one of the favorites to win this competition from the very beginning. Myung has already scored victories over Cynic's Sean Malone and the iconic Steve DiGiorgio in Rounds 1 and 2, respectively. But can he defeat the great Geezer Butler?

Geezer Butler or John Myung? Vote for your favorite bassist in the poll below! Voting for this round closes on Sunday, Oct. 13 at 11:59PM ET. Fans can vote once per hour, so keep coming back to make sure that your favorite metal musician wins!