Pitch-framing Yankees catchers want no part of robo umps

Best of BP: Some Games Are Harder to Umpire Than Others - Baseball ProspectusBaseball Prospectus

MLB analyst believes framers will have tough time behind the plate with the advent of robo umpires - Won't have a job overnight

What do robo-umps, challenge system mean for catchers? Some coaches are concerned

MLB catchers wary of looming robo umps amid rules changes

Robo umps reach Triple-A, but MLB rollout still uncertain

MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today