Jayson Aquino hit in head by liner
The left-hander didn't go down and was able to walk off the field Thursday after Rafael Ynoa's liner hit him just above the ear.
Asked whether Aquino may have sustained a concussion, manager Walt Weiss called it a "possibility."
The 21-year-old Aquino is on Colorado's 40-man roster. The Dominican Republic native made 10 starts for Class A Asheville at the end of last season, going 0-9 with a 4.78 ERA.
Copyright 2014 by The Associated Press
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