Even though there is one preseason game to go, many roster bubbles already have burst. The Redskins’ 53-man roster is starting to firm up. But there still are jobs to be won and lost. Here are five roster competitions that are very much alive going into the last preseason game.

QB Kevin Hogan vs. himself—Kevin Hogan had his ups and downs in training camp with more of the latter than the former. When the preseason games started, the offense gained just 89 yards in the first nine possessions led by Hogan. Then he completed a few passes to get up a late field goal against the Jets. When he came into the game against the Broncos, two touchdown drives ensured. Hogan has one more game to persuade the Redskins that he has enough potential to keep around.

ILBs Zach Vigil vs. Martrell Spaight vs. S Fish Smithson—A year ago the Redskins had a choice between these two and kept Spaight. But they re-signed Vigil when injuries hit later in the season and when the needed a starter he got the nod over Spaight. So essentially is the rubber match. Right now I have Spaight slightly favored because of his play on special teams, but it could go either way. It's also possible that an inside linebacker roster spot will be sacrificed to make room for an extra safety or perhaps a fullback if they think that's what Adrian Peterson needs to be effective.

WRs Cam Sims vs. Brian Quick vs. Trey Quinn—This is the classic battle between a veteran with some proven production against rookies with potential but nothing to show they can perform consistently. Quick had just six receptions in 11 games last year. Sims has had a couple of strong preseason games. Quinn is probably safe but he has not played well enough in the preseason to preclude getting a ticket to the practice squad. Sims and Quick have been out of practice and games for about a week, complicating the selection process.

Guards Tyler Catalina vs. Kyle Kalis vs. someone currently on another team—Last year the competition between these two went down to the wire and Catalina won out in large part due to his ability to play tackle as well as guard. But this year the Redskins will carry two backup tackles in Ty Nsekhe and Geron Christian, lowering the importance of Catalina’s position flexibility. If the decision is based on who is the better guard it will be very, very close. They also could opt to make a trade or pick a backup guard off of the waiver wire if they aren't happy with the options they now have.

RB Byron Marshall vs. RB Kapri Biggs vs. OLB Pete Robertson—This is the battle for the 52nd or 53rd spot on the roster spot. This is a multi-part decision here. Does the team need a fifth running back in case Chris Thompson has trouble getting up to full speed as he finishes off his rehab from a broken leg? If they do, is Bibbs or Marshall, who has been sidelined with a knee injury, the better choice? And is that fifth running back more valuable that Robertson, who is a potential special teams ace who can get some pressure on the quarterback?

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Stay up to date on the Redskins. Rich Tandler covers the team 365 days a year. Like his Facebook page, Facebook.com/TandlerNBCS and follow him on Twitter @TandlerNBCS and on Instagram @RichTandler.