Still waiting for the bye weeks to start hitting, this early-season window is your best opportunity to make tons of roster moves and take advantage of all the bench space on your fantasy football roster.

People tend to get the wrong idea about this and simply use that space to stash lottery-ticket type players, though. They're often targeting players that are little more than handcuffs, whose upside is really only going to be realized in the case of an injury to a player ahead of them. These guys generally just collect dust on your bench until you need the roster spot for a bye-week replacement.

We're through three weeks of the season, though -- you can make much sharper and more educated guesses with those roster spots now than you could earlier this month. There are plenty of players who haven't quite caught on and exploded onto the fantasy scene yet, but have either already seen a ton of volume or their usage is trending in the right direction.

These are guys you can already feel good putting into your lineup if you've been hit by the injury bug or had a poor draft, and guys who probably won't be flying under the radar for long. Lets get right into it and look at the top sleepers in Week 4.