He played in Major League Baseball (MLB) for the Houston Astros, Miami Marlins, and San Diego Padres.

Secondary School in Fairfax, Virginia, where he lettered three years under head baseball coach Bill Evers.

During his senior year at James W. Robinson, Clemens accepted a baseball scholarship to Western Carolina University, but later decided that junior college was a better option.

Clemens' tall frame and naturally live arm attracted the attention of MLB scouts early on in his college career.

On July 31, 2011, Clemens, Jordan Schafer, Brett Oberholtzer and Juan Abreu were traded to the Houston Astros for Michael Bourn.

Earlier in the game, he had gotten pine tar on his original jersey and switched to a new one, number 91, which read "Player" on the back.