Redshirt freshman offensive lineman Hunter Knighton is unconscious and in University of Miami Hospital after a Monday workout session at the school, two sources close to UM said Tuesday.

Knighton, who was brought to UM Hospital on Monday, is from Pottstown, Pa., and graduated from The Hun School of Princeton, N.J. His parents are with him at the hospital.

Details of what happened to him specifically have not been revealed.

“Our thoughts and prayers are with Hunter Knighton and his family at this time, though we are encouraged by the prognosis,” the UM athletic department said in a statement released Tuesday night. “We look forward to his return to normal activities as soon as his health permits.

“Out of respect for the privacy of those involved, UM will have no further comment at this time.”

Listed on the UM roster as 6-6 and 278 pounds, Knighton missed the entire 2013 football season following shoulder surgery.

Knighton attended the 2012 Al Golden Football Camp and was an early UM enrollee in January 2013. He was rated as a three-star offensive tackle by ESPN, 247Sports.com, Rivals.com and Scout.com. He played on the offensive and defensive lines in high school.