Harvin back at practice after collapse

Minnesota Vikings receiver Percy Harvin has returned to practice for the first time since collapsing on the field last week because of a migraine headache.

Harvin was taken by ambulance to the hospital on Thursday after collapsing and vomiting on the field. He spent the night in the hospital and did not go with the team to San Francisco for Sunday's preseason game.

Coach Brad Childress said Tuesday that Harvin was having more tests done and would not resume practicing until those were finished. He was practicing in full gear Wednesday during the portion that was open to the media.

It is unclear if Harvin will play in the preseason game on Saturday night against Seattle.