Most NFL players don't get paid during the offseason, but they can definitely be fined, and several players around the league are going to find that out the hard way this week. 

After two months of offseason training activities (OTAs), most teams around the NFLare finally kicking off their three-day mandatory minicamp this week, which is mostly notable, because it's the first set of practices all offseason that players are actually required to attend, and let's just say that skipping mandatory minicamp is a potentially costly decision.

Anyone who decides to skip out on the required practice can be hit with a hefty fine: Under the terms of the collective bargaining agreement, a player can be fined up to $14,775 for skipping the first day of minicamp. If a player decides he also wants to skip the second day of camp, he can be hit with a second fine of $29,550. If that same player decides to skip the third day of minicamp, he can be fined $44,325, and keep in mind, those fines are all separate, which means a player who skips all three days could potentially be fined $88,650. 

That's bad news for guys like Redskins offensive lineman Trent Williams, along with Lions teammates Darius Slay and Damon "Snacks" Harrison, who all skipped minicamp last week.