The "Sergio Stinger" is a great shot that you might have seen if you were watching this year's British Open (the video above is on Hole No. 3). It's great for playing both into the wind and downwind (when your not sure what the wind effect might be on your ball flight).
Matt Rudy, of Golf Digest, explains the shot as:
...a downward blow from an adjusted ball position. "On TrackMan, the average tour player hits down on the ball three degrees with a 3-iron," says Lukas McNair, a senior instructor at the Hank Haney Golf Ranch outside Dallas. "Here, he's bringing the angle of attack to five degrees. He moves the ball back in his stance so his head is in front of the ball at address, hits down and makes an abbreviated followthrough with a low arm swing."
Matt's description is not the only way to hit the shot. You can also try: (1) stacking your weight on your left foot (if the ball was in the middle of your stance, this would shift your head forward of the ball), (2) as you swing back, lean toward the target, (3) take a three-quarter backswing as Sergio does in the video above and (4) hit down on the ball (hit the ball first and then take a divot) with an abbreviated, low arm follow through as Sergio does in the video above.
As a bonus, this is also a great drill for learning what it feels like to have your weight firmly on your left side when making a full swing and hitting down on the ball (three degrees?) with full compression.
