Major League Baseball's Dirtiest Tradition May End With New
Memo - MLB to require all teams to 'muddy' ball using exact same
Whose job is it to rub down baseballs with mud before an Indians
The end of rubbing mud? MLB experiments with new baseballs - DRaysBay
Magic mud used by every Major League Baseball team is harvested
After rubbing mud on baseballs for nearly a century, MLB is trying
Famed N.J. mud used to rub up baseballs could be on the way out
Baseball Prospectus Insightful analysis for the discerning
MLB leans on longtime mud supplier, not Rawlings, to coat balls
Baseball Rubbing Mud: Baseball Rubbing Mud: Institutional Size
After rubbing mud on baseballs for nearly a century, MLB is trying
Standard baseballs — Zack Hample
Baseball Prospectus Insightful analysis for the discerning
NJ - Lambertville: Lena Blackburne's Baseball Rubbing Mud
Learn how to Mud a Baseball with former Phillies' Pitcher Cole