Ranking the 10 Most Unique Batting Stances in Recent MLB History | News, Scores, Highlights, Stats, and Rumors

Gary Sheffield's whip-quick swing produced 509 career home runs. And his bat was almost never still.

As he awaited the ball, Sheffield's lumber was in constant motion, waving and wiggling at the pitcher like a threatening helicopter blade. All that movement seems like it could disrupt a hitter's timing, but it worked.

"You can do that in high school and get away with it, but I never thought he could get away with it in rookie ball, let alone the big leagues," Sheffield's minor league roommate and ex-MLB center fielder Darryl Hamilton told Tyler Kepner of the New York Times. "But he knows what he's doing. It may look strange, but when that bat head goes through the strike zone, it's perfect."