| Clue | Source | Date |
|---|---|---|
| Where pitchers prepare | Wall Street Journal | 29 Apr 2021 |
| Pitchers' warm-up areas | Eugene Sheffer | 25 Oct 2017 |
| Closers' corrals? | ||
| Warmup places for pitchers | ||
| Warmup places for pitchers | ||
| These provide relief | ||
| Ball teams have two | ||
| Adjuncts to ball fields. |