Migraines for Harvin, Jackson talks go on

EDEN PRAIRIE, Minn. -- As the minutes ticked by Wednesday on the Vincent Jackson trade window, the Minnesota Vikings revealed another crisis at the receiver position: Percy Harvin is once again suffering through a migraine episode that forced him to miss practice.

As a result, the Vikings had four receivers on the practice field: Bernard Berrian, Greg Lewis, Greg Camarillo and the just-signed Hank Baskett. Speaking about 45 minutes before the Jackson trade deadline, coach Brad Childress acknowledged Harvin has been given some new protocols for dealing with migraines but isn't sure if they will speed his recovery.

"I think there's not enough evidence so far," Childress said. "We'll see."

If you recall, Harvin missed most of training camp when the death of his grandmother and another close friend led to a migraine episode. He returned to practice Aug. 19, but a reaction to medication caused him to collapse on the field and be hospitalized. Harvin recently confirmed that doctors diagnosed him with sleep apnea during his hospital stay and hoped that sleeping with an oxygen mask would reduce or eliminate the frequency of migraines.

But unfortunately, as we discussed last month, Harvin's availability truly needs to be considered a week-to-week deal.

With Harvin still not clear of the migraines and Sidney Rice sidelined for at least another four weeks because of a hip injury, you can understand the desperation the Vikings feel and why they will push for Jackson right up to the 4 p.m. ET deadline. For whatever it's worth, quarterback Brett Favre pushed back his weekly news conference to Thursday. Like everyone else, he's waiting for the final word. We'll let you know when we know.