Possible Clues:

• NL East player
• Citi Field player, for short
• Citi Field player
• Shea player, for short
• Big Apple NL player, for short
• Citi Field MLBer
• Big Apple 52-Acr. player
• Big Apple baseballer, for short
• Citi Field player, briefly
• Ryan, before he became a Cal. Angel