Percy Harvin has proven to be one of the toughest receivers in the NFL.  He’s not afraid to come across the middle, he’ll take a huge hit and pop right back up, he’ll return a kick at top speed with 11 giant men coming right towards him, and he played despite a fairly serious shoulder injury.

Harvin missed his first game on Sunday, however, as a result of a chronic migraine issue that has plagued him since he was very young.

The mysterious migraine issue had previously kept Harvin from practicing before, but had not kept him from playing like it did this Sunday.

Brad Childress makes it sound like the Vikings will pull out all the stops in an effort to help their first round investment work through the migraines.

“He should be back and at it [Wednesday] when we start practice, but the process is not over yet,” Childress said.  “We’re working vigorously to try to address [the issue] and take some testing and that type of thing, which I’m sure he’s gone through before,” Childress said.

Harvin was nowhere near Vikings practice last week, as he faced a barrage of tests relating to his migraine issues.

For as much risk as the Vikings were perceived as taking by selecting Harvin in the first round, it would be a shame if THIS chronic problem ended up being a major factor in Harvin’s career.