Here is what you need to know on this Sunday, August 21, 13 days before the Washington Redskins cut their roster to 53 players.

Timeline

—Today's schedule: Off day, no availability

—The Redskins last played a game that counted 224 days ago. It will be 22 days until they host the Steelers in their 2016 season opener.

—Days until: Cowboys @ Redskins 28; Browns @ Redskins 42; Redskins @ Ravens 49

Five Redskins sweating it out on the bubble

ILB Perry Riley—The longtime starter played 10 snaps against the Jets and he doesn’t seem like he was one of the top-line players that Jay Gruden wanted to play sparingly or not at all. That comes after he played just 12 snaps against the Falcons. And he didn’t dent the stat sheet in either game. With a cap number slightly over $5 million it doesn’t look good for Riley.

OT Takoby Cofield—He played 46 snaps against the Jets, more than anyone else on offense. The first-year player was inconsistent, although he had his moments. His task is to convince the coaches that he’s worth a roster spot even though they have a lot of faith in Ty Nsekhe to be effective filling in in both spots. If he can't make his case another season on the practice squad could be in the cards.

OLB Houston Bates—There is one OLB spot available behind Kerrigan, Smith, and Murphy and it seems to be Bates’ to lose. However, he could lose it. His competitors for the job, Willie Jefferson and Lynden Trail, had good nights against the Jets. Jefferson had a tackle for loss and Trail made a play on special teams. Bates probably has the inside track but he needs to keep pushing to keep it.

RB Keith Marshall—The coaches probably would like to hand him the backup running back job and be done with it. But with 25 yards on 15 carries in two games (1.7 yards/carry) they just can’t do it. If he gets several series with the starters against the Bills on Friday and doesn’t greatly improve that average he could be looking at a spot on the practice squad.

WR Maurice Harris—There could be a spot for a wide receiver available if Josh Doctson starts the season on the PUP list. Harris has consistently looked better than any of the rookie free agent receivers in practice. But he needs more production in games than the two catches for 23 yards he has on the books for far.

Tandler on Twitter

#Redskins' Matt Jones seemed to have difficulty raising his left arm even to chest level. In pain now but we'll see how long he may miss. — Rich Tandler (@TandlerNBCS) August 20, 2016

In case you missed it