Related Clues:

• Some tracks
• Two-time U.S. Open winner
• Two in a million?
• Overhead trains, for short
• See 17-Across
• Two-time U.S. Open champ
• 1997 U.S. Open champ
• Commuters' ways
• Big name in golf
• Disappearing transports
• Golfer Ernie
• Noisy trains
• See 64-Across
• Some trains
• City transit