Shoulder issues plague Koivun's back nine at John Deere Classic
Jackson Koivun's right shoulder proved bothersome on Friday as the two-time Haskins Award winner failed to make the cut in his PGA Tour debut at the John Deere Classic.
Jackson Koivun's right shoulder proved bothersome on Friday as the two-time Haskins Award winner failed to make the cut in his PGA Tour debut at the John Deere Classic.
