![MLB could begin testing ball-strike challenge system in majors as soon as spring training, says Rob Manfred](https://cdn.newsserve.net/ONPglobe256.png)
MLB could begin testing ball-strike challenge system in majors as soon as spring training, says Rob Manfred
Manfred said Tuesday that the system will not be introduced without a trial run first
Full Article
Manfred said Tuesday that the system will not be introduced without a trial run first
Full Article