Last night, in a 7-6 loss to the Florida Marlins, the San Francisco Giants suffered what could potentially be a devastating loss when their prized catcher, 24-year old Buster Posey, in an attempt to block the plate and prevent a run from scoring, injured his leg in a gruesome collision (somewhat graphic mlb.com video). Following the game, his agent is questioning MLB rules surrounding home plate collisions. Analysts across the game are (ESPN Insider, subscription required) also wondering...is it time for a change? Some historical context on collisions at home plate. It's also just recently been reported that Posey has broken his leg and torn ligaments, which is a shame for such a promising and exciting player.