CareFlite was called to Centennial High School in Frisco for a sports injury Monday afternoon.
The Frisco Independent School District says a football player was injured during after-school practice but wasn't sure the extent of the injuries.
Chopper 5 saw the medical helicopter land on the football field in the 6900 block of Coit Road, load a patient and leave.
Practice resumed shortly after CareFlite departed on its way to Parkland Hospital.
NBC 5 has crews on the way and we'll update this story with more information as soon as it's available. As this story is developing, elements may change.