Look away, fantasy football managers. Look away, San Francisco 49ers fans. We have an update on Christian McCaffrey\u2019s Achilles injury, and it\u2019s not looking great.<\/p>\n
49ers head coach Kyle Shanahan told the media on Friday that the club will not be opening the practice window for McCaffrey, who has been on injured reserve since the start of the season<\/a> with Achilles tendonitis.<\/p>\n ESPN\u2019s Adam Schefter reported that McCaffrey is unlikely to face the Kansas City Chiefs next week in the much-anticipated Super Bowl rematch.<\/p>\n<\/section>\n <\/p>\n\n The 49ers will have 10 days off before their matchup with the Chiefs. On Thursday night, the 49ers beat the Seattle Seahawks. They don\u2019t play again until October 20.\u00a0<\/p>\n But McCaffrey won\u2019t be practicing, and Shanahan will have to continue to embrace life without him. Replacement running back Jordan Mason, who has masterfully filled McCaffrey\u2019s large shoes, exited Thursday night\u2019s game with a shoulder injury.<\/p>\n The third string back, Isaac Guerendo, rushed for 99 yards on 10 attempts during the victory against Seattle. The fourth-rounder out of Wisconsin, who most people didn\u2019t even know existed until Thursday, looked up to the task to replace McCaffrey and Mason.<\/p>\n