Possible Clues:

• Hall of Fame knuckleballer Phil
• Pitcher Phil
• Knuckleball pitcher Phil
• Baseball Hall-of-Famer Phil
• Phil in Cooperstown
• Hall of Fame pitcher Phil
• Baseball Hall-of-Famer nicknamed Knucksie
• Hall of Fame pitcher since '97
• Knuckleballer Phil
• Phil who was a five-time Gold Glove winner