Shortstop goes for ground ball, second baseman goes for ground ball, collision ensues

You might think that collisions are only a concern for outfielders -- they've got much more room to cover, they're running long distances and they're chasing baseballs flying through the air, so it's not too surprising that sometimes this happens:

But infield collisions are no laughing matter. And to prove it, Cardinals' infielders Dean Anna and Aledmys Diaz put together a quick PSA during their game against the Mets on Thursday to alert the general public. All it takes is one perfectly placed Alejandro De Aza ground ball for disaster to strike.

A reminder: Friends don't let friends run into their double play partners.