Ferrell took the liner off the back of his head, but remained on his feet. The ball, meanwhile, shot into foul territory, resulting in a single for Healy.
Ferrell departed soon after, and was taken to the hospital for precautionary purposes:
Jeff Ferrell getting CT scan, but was alert and responsive during concussion testing, according to Brad Ausmus.— Jason Beck (@beckjason) September 19, 2017
Ferrell entered the night with a 6.23 ERA in 8 ⅔ innings in the majors this season.