The boy had wounds all over his body including a skull fracture and severe injuries to his heart, according to Kurtzrock.

WSJ: NY man admits killing woman and her 2-year-old son

The 6-foot-7 right-hander sustained an epidural hemorrhage, brain contusion and skull fracture in the freak accident, then left Oakland for a free-agent deal with Arizona.

WSJ: MLB 2013: Challengers gear up to take down Giants

Oakland right-hander Brandon McCarthy was hit in the head by a line drive last September, causing a skull fracture, an epidural hemorrhage and a brain contusion that required surgery.

NPR: Jays' Happ Hit In Head By Line Drive, Carted Off