National League president Harry Pulliam dismisses the Opening Day protests of Pittsburgh manager Fred Clarke over Roger Bresnahan’s shin guards. As yet, Bresnahan is the only catcher using them.

On May 21, 1907 — National League president Harry Pulliam dismisses the Opening Day protests of Pittsburgh manager Fred Clarke over Roger Bresnahan’s shin guards. As yet, Bresnahan is the only catcher using them.

Source:
Baseball Reference May 21