INDIANAPOLIS, IN - MARCH 02: Running back Christian McCaffrey of Stanford answers questions from the media on Day 2 of the NFL Combine at the Indiana Convention Center on March 2, 2017 in Indianapolis, Indiana. (Photo by Joe Robbins/Getty Images)

INDIANAPOLIS, IN - MARCH 02: Running back Christian McCaffrey of Stanford answers questions from the media on Day 2 of the NFL Combine at the Indiana Convention Center on March 2, 2017 in Indianapolis, Indiana. (Photo by Joe Robbins/Getty Images)