Wanna know what it looks like when you get hit in the face by a 90 mile-per-hour fastball?  There's a guy who knows ... and the photo's INSANE.

Delino DeShields Jr. is a center fielder for the Houston Astros' minor league team in Corpus Christi.  He was hit in the face with a fastball on Friday, and posted photos from the hospital.  And his face is so SWOLLEN, it looks like half of it is falling off his head.