![MLB to test three more rule changes, including installing a designated pinch runner - The Boston Globe MLB to test three more rule changes, including installing a designated pinch runner - The Boston Globe](https://www.bostonglobe.com/resizer/MNr7mVJ26gubfuEOc-5VLUA-eCM=/arc-anglerfish-arc2-prod-bostonglobe/public/KZFAK2AEZ7WMBVMRSJ76JF74LA.jpg)
MLB to test three more rule changes, including installing a designated pinch runner - The Boston Globe
![Houston Astros pinch runner Derek Fisher scores the game-winning run against the Los Angeles Dodgers in the tenth inning of the 2017 MLB World Series game five at Minute Maid Park in Houston Astros pinch runner Derek Fisher scores the game-winning run against the Los Angeles Dodgers in the tenth inning of the 2017 MLB World Series game five at Minute Maid Park in](https://c8.alamy.com/comp/TXRPA5/houston-astros-pinch-runner-derek-fisher-scores-the-game-winning-run-against-the-los-angeles-dodgers-in-the-tenth-inning-of-the-2017-mlb-world-series-game-five-at-minute-maid-park-in-houston-texas-on-october-29-2017-the-astros-beat-the-dodgers-13-12-in-ten-innings-to-take-a-3-2-best-of-seven-game-series-lead-photo-by-kevin-dietschupi-TXRPA5.jpg)
Houston Astros pinch runner Derek Fisher scores the game-winning run against the Los Angeles Dodgers in the tenth inning of the 2017 MLB World Series game five at Minute Maid Park in
![Talkin' Baseball on Twitter: "MLB is testing a 'Designated Pinch Runner' in the Atlantic League this season that can be subbed in and out of the game at any time https://t.co/k7RhiCDcLB" / Talkin' Baseball on Twitter: "MLB is testing a 'Designated Pinch Runner' in the Atlantic League this season that can be subbed in and out of the game at any time https://t.co/k7RhiCDcLB" /](https://pbs.twimg.com/media/FuA24o4XwAkkdZW.jpg)
Talkin' Baseball on Twitter: "MLB is testing a 'Designated Pinch Runner' in the Atlantic League this season that can be subbed in and out of the game at any time https://t.co/k7RhiCDcLB" /
![Regular Season Rules and Regulations Spotlight: Player Re-Entry, Special Pinch-Runner, Pitch Count, and Mandatory Play - Little League Regular Season Rules and Regulations Spotlight: Player Re-Entry, Special Pinch-Runner, Pitch Count, and Mandatory Play - Little League](https://res.cloudinary.com/little-league/image/upload/c_limit,dpr_auto,w_1536,q_auto,c_fill,g_face/v1581694694/bb-player-sliding-into-third-5e46bee6575f6.jpg)