Christian McCaffrey out again as 49ers battle Vikings

(Photo credit: Darren Yamashita-Imagn Images)
Christian McCaffrey was optimistic that he would make his season debut when the San Francisco 49ers play the Minnesota Vikings on Sunday afternoon in Minneapolis.

But the calf injury and Achilles tendinitis that caused him to sit out the 49ers' season opener continues to flare up, and McCaffrey will sit out again in Week 2.

In fact, he might be placed on injured reserve afte