As late as this past Friday evening, all public indications suggested that Christian McCaffrey would suit up for Stanford against North Carolina in the Hyundai Sun Bowl on Dec. 30.

McCaffrey, who announced his intentions to enter the 2017 NFL draft two weeks ago, said he looked forward to one last opportunity to play with his Cardinal teammates. He was sweating slightly as he walked off the Stanford practice field this past Friday, even on a particularly chilly afternoon.

"I'm really focused on UNC," McCaffrey said. "I just wanted to make the announcement to get it out of the way. I'm just focused on UNC now."

But something changed in the 50 hours between then and McCaffrey's early Monday morning tweet, in which he officially declared the end of his college career.

http://www.espn.com/blog/pac12/post/_/id/107295/christian-mccaffreys-sta...