Related Clues:

• Strike zone's lower boundary
• Leg bones
• They provide prayer support
• They bend in prayer
• Joints
• Strike zone boundary
• See 2-Down
• Places for braces
• Croucher's sore spots
• They may buckle
• Supplicant's supporters
• Cap locales
• See 52-Across
• Elbow counterparts
• Patch locations