Published: Aug 19, 2010 7:04 PM EDT
Updated: Aug 20, 2010 4:30 AM EDT

EDEN PRAIRIE, Minn. (AP) — Minnesota Vikings wide receiver Percy Harvin has been taken to a hospital by ambulance after passing out at the beginning of practice.

Coach Brad Childress says Harvin was able to speak, but was disoriented for a few minutes after he passed out at Thursday's practice. Childress says Harvin may have had a migraine headache attack, and he was taken to an unspecified hospital.

Harvin has suffered from migraines all his life and missed most of training camp this season.