a massive surprise for these San Francisco 49ers Mike gfoo and I reported just a couple minutes ago Christian mcaffrey is out for tonight's game was set to make his debut of course with the San Francisco 49ers have been limited all week with a calf and an Achilles injury it is not going to happen he is now officially inactive and the thought all along was that mcaffrey who barely practiced in training camp and told reporters the last day of practice that he would be fine he would get his normal work CL everything was going to be okay it is not okay he actually worked out before the game his calf did not feel quite right and airing on the side of caution the 49ers say you know what we are just not going to put him on the field it's a long season not worth the risk so no Christian mcaffrey tonight adjust their fantasy teams accordingly instead Jordan Mason a third-year player who has barely played for the 49ers not a lot of productivity but I know soone inside the organization that they like he now is the starting running back for the 49