The health of quarterback Brett Favre's throwing arm appears to be a pivotal factor in whether he comes out of retirement to play for the Minnesota Vikings.
A source close to the situation told ESPN's Jeremy Schaap on Friday that X-rays of Favre's right shoulder -- he has pain resulting from a torn biceps tendon -- have been sent to the Vikings and that the X-rays are in the process of being evaluated. If it is determined by Favre's and the Vikings' medical people that he needs anything less than "major" surgery on his shoulder, Favre will unretire to play for the Vikings, the source said.
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If "major" surgery is necessary, Favre will remain retired, the source said.