Toronto Blue Jays, catchers around MLB left confused, frustrated
The Buster Posey Rule & Home Plate Collisions: MLB Rule 7.13
MLB has now decided to eliminate home-plate collisions at home
Jonathan Lucroy reportedly suffers concussion in violent home-plate
Jonathan Lucroy - Wikipedia
New MLB Rule Cuts Home Plate Crashes, But Not Catcher Concussions
Gruesome collision leaves Senators catcher battered but unbroken
agreidy9775 Task Force Concussion Blog
MLB player suffers facial fractures after being hit in head by 91
MLB Rules Committee bans home plate collisions - Amazin' Avenue