Jeff explains that cure your slice, you swing path needs to be outside to in, not inside to out.
To get your swing coming outside to in, a good drill is to set an inside and outside ball just on the outside of your trailing foot, perpendicular to the target line. With a ball in your right hand you want to practice going around the outside ball, then around the inside ball.
For the next part of the drill you need to release the ball. You want to toss the ball as if you spinning it to your left hand. The ball should go straight if you did the drill correctly.
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