McKissic (concussion) won't participate in Thursday's practice, JP Finlay of NBC Sports Washington reports.
The fact that McKissic isn't practicing even on a limited basis for the second straight day suggests he hasn't yet made much progress through the NFL's concussion protocol, which he entered after suffering a head/neck injury in Washington's 17-15 win over the Seahawks on Monday. Unless McKissic takes a significant step forward in his recovery and returns to practice Friday, he'll likely be ruled out ahead of this Sunday's game in Las Vegas. If that's the case, Wendell Smallwood could be elevated from the practice squad to provide a pass-catching option out of the backfield behind Antonio Gibson (shin) and Jaret Patterson. Washington could also simply turn to Gibson to handle more passing-down work, after he nabbed a season-high seven receptions in Week 12.