What It Means:

Boone left in the second half of Sunday's loss to the New York Jets and was ruled out. X-rays came back negative, but it sounds like Boone will be held out at least through the Broncos' bye in Week 9. Marlon Mack was signed to the active roster off of the San Francisco 49ers' practice squad on Monday, so he is set to replace Boone as the No. 3 running back behind Melvin Gordon and Latavius Murray. The first two will continue to split most of the backfield work in Week 8 when the Broncos meet the Jacksonville Jaguars in London.

Gordon out-snapped Murray 40-31 and out-carried him 11-8 while also leading the backfield with 27 routes run. He finished with 50 yards on 13 touches and Murray had 21 yards on 10 touches. For the season, Gordon is averaging 2.58 yards after contact per attempt, compared to 2.41 for Murray.