The Kansas City Chiefs are 5-0 and are returning to the field after a much-needed bye week. They will be taking on the San Francisco 49ers in a clash between NFL heavyweights. Although they are undefeated, the Chiefs have been slammed by multiple injuries to offensive playmakers. They lost Isiah Pacheco for an extended period of time after he fractured his fibula. Kansas City is also down Marquise Brown and Rashee Rice for the year.