The voluntary part of the Redskins offseason ended last week. On Tuesday, mandatory minicamp opens and the schedule calls for three straight days of practice in Ashburn.

The biggest difference, and maybe the only real difference, comes from the mandatory part of things. OTAs are all voluntary, and coaches and players downplay their significance.

Minicamp, however, is mandatory. If players don't show up, they get fined.

With that in mind, it seems likely linebacker Zach Brown will be in attendance on Tuesday. Washington head coach Jay Gruden has been clear Brown has been at the facility this offseason, but the tackle machine has not been around for OTA sessions when the media is present.

Brown will probably face questions about his absence, but in reality, it isn't a big deal. The sessions were voluntary.

Elsewhere in minicamp, a lot of the drills will look similar to OTAs. The team won't wear pads, the linemen won't hit, and the receivers won't fear any safeties coming over the middle.

Still, there's value, particularly for skill players.

On the offensive side of the ball, there are real questions about the wide receiver depth chart. Josh Doctson, Jamison Crowder and Paul Richardson are roster locks, but after that, competition will be intense. Maurice Harris, Robert Davis and Brian Quick all spent time with the Redskins in 2017. Rookie Trey Quinn looks like a player with a strong chance of making the roster and a number of undrafted players could push for spots as well.

Defensively, the secondary will get more good work during minicamp. As that unfolds, keep an eye on Fabian Moreau, a second-year player that Josh Norman believes could be in line to make a big leap. Veteran Orlando Scandrick and incumbent Quinton Dunbar are all working with the top lines in base and nickel, but maybe Moreau could force momentum towards his chances at training camp.

One other thing to watch - on Tuesday the Redskins will honor the replacement players from their 1987 Super Bowl winning squad. Watch for video of the ceremony on NBC Sports Washington.

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