Jordan Mason had a career game but this one question ruined his night star running back Christian mcaffrey was a late scratch being ruled out of the game just 90 minutes before kickoff leading the way for Jordan Mason to take off lead back duties Mason more than held his own setting a career high 147 rushing yards on 28 carries as well as a touchdown after the game Mason revealed he found out he was going to be starting on Friday which is where the problem arises the 49ers didn't list Christian mcaffrey questionable until Saturday due to calf and achilles issues if Mason knew he was starting Friday the 49ers didn't properly disclose McCaffrey's injuries and are subject to an investigation and potential penalties for withholding injury information head coach Kyle Shanahan vehemently denied he told Mason he'd be starting on Friday I never told Jordan he was going to start told him he had to be ready a bunch but Mason was then asked again when he found out he'd be starting that question right there is is why I'm at that's why I don't like really talking to Media