Percy Harvin collapses at practice  ESPN.com news services
Minnesota Vikings receiver Percy Harvin collapsed while watching practice Thursday and was taken away in an ambulance.
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Migraine, who suffers from severe migraine headaches, vomited and then fell to the ground, the Star Tribune reported.
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, the reigning winner of the NFL's offensive rookie of the year award, missed two weeks of training camp this season because of migraines. Harvin's grandmother died two days into training camp, and then his migraine headaches flared up.