CINCINNATI -- Chicago Cubs outfielder Jason Heyward said that experiencing his first concussion opened his eyes to its dangers.
Heyward, who was activated from the 7-day concussion disabled list Friday, said he discovered how "scary" head injuries could be.
"It made a believer out of me," Heyward said Friday afternoon. "Not that I wasn't a believer before. You feel for anyone that goes through it. That stuff is scary. You don't feel like yourself, and you don't see anything wrong with you physically, but there is something that's not right."
Heyward, 28, banged his head against the right-field wall as he attempted to rob Dexter Fowler of a walk-off home run at Busch Stadium in St.