Fantasy Football Rankings Week 8: Roy Helu and 5 Players Whose Stock Will Rise

Just as in the real world, fantasy football stocks of NFL players fluctuate on a regular basis.

Whether it's a really good game the previous week, a glaring mismatch in the upcoming game, or just a gut feeling from a few experts. Any or all of those things can drastically impact the stock of an NFL football player.

Who's going up in stock this week?

Check out this list of players with some very high fantasy football value: 

Roy Helu, RB Washington Redskins

With Tim Hightower out for the year Helu is going to start getting a lot more looks. He got more runs in last week than starter Ryan Torian, so expect the same this week against the Bills.

DeMarco Murray, RB Dallas Cowboys

Murray put up a career day and a Cowboy's record with 253 yards against the Rams. He's got a chance to put up similar numbers against an anemic Eagles defense.

Chris Johnson, RB Tennessee Titans

Johnson has had a horrible year so far. If he can't get things going against the Indianapolis Colts, this will be a disaster year. He's going to bounce back.

Christian Ponder, QB Minnesota Vikings

The Ponder era is alive and well in Minnesota. He showed that he can hold his own against the defending world champion Green Bay Packers. He should put up good numbers against Carolina.

Maurice Morris, RB Detroit Lions

It doesn't appear that Jahvid Best is going to play, which means Morris is going to get a majority of the snaps in the backfield. He's a hard runner who gets yards and the Lions are going to need to establish the run.