By Andrew Holleran Former Carolina Panthers running back Christian McCaffrey will make his San Francisco 49ers debut on Sunday. The All-Pro running back will play against the Kansas City Chiefs on Sunday afternoon. McCaffrey will reportedly play about 20 snaps for the 49ers on Sunday, though plans could change. Jay Glazer first reported the news. Will we see McCaffrey playing more or less than that? “For context, this is about 40% of the snap share that he’s gotten thus far this year in Carolina,” one fan wrote. “20 snaps? That’s like 15 PPR fantasy points. I’m in,” one fan added. “My man’s pl…