Related Clues:
- Waterproof sheet
- Heavy waterproof canvas
- Waterproof cloth
- Ground crew's covering
- 2008 bailout letters
- Woodpile protector
- Field cover during a rain delay
- It's pulled out by a groundcrew
- Rain delay sight
- Infield protection
- Baseball diamond cover
- Slow roller on a baseball diamond?
- One may be rolled up
- Pool protector
- Heavy waterproof cover