Christian mcaffrey was surprisingly inactive for the San Francisco 49ers first game of the season and some information Kyle Shanahan shared about the running back's injury did not sound overly encouraging mcaffrey did not play in the 49ers 3219 win over the New York Jets on Monday night in a conference call on Tuesday Shanahan told reporters that mcaffrey is dealing with a calf injury and tendonitis of the Achilles though Shanahan claimed mcaffrey would have been able to suit up if it were a playoff game the comments raised some concerns it's not just the calf it's the Achilles and the Achilles is tendinitis and that stuff comes and goes and when it is acting up it's something you've got to be very careful about Shanahan said via Michael David Smith of pro football talk Christian is very diligent about that stuff if it was a playoff game he made it very clear to me he believed he could go but when you hear that type of stuff and it's not a playoff game and it's week one especially when you're dealing with the lower extremities like that it was a tough decision but hearing all the words and stuff in the long run it made it easy the big question is if the injury is something that mcaffrey will have to deal with all year Shanahan admitted that the issue is similar to the one that landed mcaffrey on the injury report prior to a playoff game against the Green Bay Packers in January though the allpro was able to play there have already been some questions about whether the 49ers were misleading with McCaffrey's injury status leading up to Monday's game the ners traveled to Minnesota to take on the Vikings on Sunday in week two McCaffrey's status for that game is very much in question subscribe to the channel for more interesting videos see you soon