Jim McLean empfiehlt in Golf Digest:
 

To fight a slice, keep the right elbow close to the right hips
 
You hear a lot about tour players–Tiger included–getting „stuck“ on the downswing. This refers to the right elbow getting too far behind the right hip late in the downswing.
 
A more common concern for amateurs is the opposite problem–a right elbow that’s too far from the right hip on the downswing (see large photo below). This move is evidence of an outside-to-in swing path and usually results in a finish in which the left arm saws across the chest. It’s a death move when hitting full-swing shots, with a pull or weak slice the likely result.
 
DON’T DO THIS:
Separating the right elbow and hip on the downswing promtes slice.

DO THIS:
Deliver the club-head approaching from inside the target line, the right elbow close to the hip.

To fix this fault, swing to the top, then bring the club down into what I call the „delivery position“: the clubshaft parallel to or slightly inside the target line as it nears the halfway-down position. Focus on keeping the right elbow close to but in front of the right hip as you swing down, as I’m demonstrating below. Feel this proper position, then incorporate the inside move into full-swing shots.
 
Fotos: Dom Furore