What does it mean for an NFL player to be underrated? In simple terms, it is someone who is better than the conventional wisdom suggests. But that can still mean a lot of different things.
It could be that a player is misconstrued as good when they're actually great. It could mean a player is considered average by fans, but he's actually above average on the field. It can even point to a player being acceptably productive despite being criticized for being subpar.
I went through the entire league to identify one player at every position who is currently underrated in some way -- and you'll find instances of all three definitions on the list.