This story is for you if...
1. You chicken wing.
2. You don't know if your elbow is bent or not, but something's definitely not right.

The Fault
You chicken-wing. You can't really see yourself doing it because it's happening at the fastest part of your swing—impact—but that bent left elbow in your follow-through is easily diagnosed by the never-ending series of slices and thins you hit with every club in your bag. When most golfers attempt to fix their chicken wing, they go right to the source: their left elbow. Yes, that's part of the problem, but the main culprit is your body turn, or lack thereof. When your trunk stops rotating at the bottom of your downswing, the clubhead passes your hands and causes your elbow to bend.