MLB standardizes ball muddying process

After rubbing mud on baseballs for nearly a century, MLB is trying

MLB leans on longtime mud supplier, not Rawlings, to coat balls

MLB standardizes how baseballs are prepped to be put in play

Famed N.J. mud used to rub up baseballs could be on the way out

Baseball Rubbing Mud and its Effect on Roughness: Post #25

MLB standardizes ball muddying process

A Chart is a Picture That's Worth More Than a Thousand Words

Ball Mudder, Inc. - Ball Mudder

Pro Pitchers' Dirty Secret Rubbed On Every Ball : NPR

MLB experimenting with pearl white baseballs to rid sticky stuff

Complaints about slick baseballs spur MLB to make changes - Los

MLB experimenting with pearl white baseballs to rid sticky stuff