Pacheco (fibula) is expected to miss in the range of 6-to-8 weeks, according to Adam Schefter of ESPN.
For his part, coach Andy Reid has already confirmed that Pacheco will miss Sunday's game against the Falcons, per Jesse Newell of the Kansas City Star, while acknowledging that "it's going to take a little bit of time there" for the running back to recover from his fibula injury. With Pacheco expected to land on IR, Carson Steele and Samaje Perine are next up in the Chiefs' backfield pecking order, with Clyde Edwards-Helaire -- who is on the non-football illness list -- not eligible to return to the active roster until Week 5. The team also has Keaontay Ingram and Emani Bailey on the practice squad and plans to bring Kareem Hunt in for a visit.