Manfred: Start of substance crackdown going 'very well

MLB roundtable: Is baseball's sticky stuff crackdown necessary?

Commissioner Rob Manfred says MLB strives for consistency in making baseballs - Newsday

MLB's “Sticky Stuff” Ban and Which Pitchers it Has Affected the Most, by Nick Buckley

Sticky stuff should just be start – Sentinel and Enterprise

Pitchers Freaking Out Over MLB's Sticky Substances Crackdown Is Great - InsideHook

MLB commissioner suspects many pitchers are using banned sticky stuff

Manfred: Lockout preferred to in-season strike if no deal – The Denver Post

MLB experimenting with pearl white baseballs to rid sticky stuff problem – Oneida Dispatch

Joe Girardi was the Yankees' manager in 2014 when one of their pitchers was suspended

MLB commissioner Rob Manfred responds to the enforcement on sticky substances: 'The first two days have gone very well' - The Athletic

MLB Commissioner Rob Manfred says enforcement of sticky substance rule has gone 'very well

Major League Baseball's crackdown on sticky substances begins with regular checks on pitchers Monday - ESPN

Searching for sticky stuff: MLB umps start checking pitchers

MLB commissioner Rob Manfred says crackdown on sticky substances going 'very well'