Related Clues:

• Two-time U.S. Open tennis champ
• Graf rival
• Two-time U.S. Open winner
• Two-time U.S. Open champion
• See 20-Across
• Two-time U.S. Open champ
• Tennis star with a palindromic name
• Three-time U.S. Open champ
• Tennis champ Monica
• Tennis's Monica
• See 42-Across
• 1991-92 U.S. Open champ
• U.S. Open champ, 1985-87
• Hingis rival
• Three-time U.S. Open winner Ivan