Vegas lines are more than just a predictor of the final score of games. They also can be a secret weapon in Fantasy football.

Before you start using them to crush your Fantasy week-to-week lineups, you'll want to hear what Fantasy analyst Jen Ryan has to say. She's a contributor at FootballDiehards.com and on SiriusXMFantasy's "Football Diehards" show. Ryan, who has been an FSWA finalist for "Best Football Series," goes in-depth every week on SportsLine on using Vegas lines to make Fantasy decisions in both season-long and daily.

One tip we'll give away for Week 7: Ryan is high on tight end Evan Engram in the Giants vs. Cardinals matchup that has a whopping total of 50.5 

"Engram is the chalkiest of the chalk plays this weekend with the Cardinals being the worst team against tight ends in the NFL," Ryan said. "You could fade him, but you would be remiss if you did not find a way to fit him into your cash game lineups. He is essentially the top play of the main slate."

Ryan has also identified an undervalued wide receiver set to see a HUGE amount of targets. This player can give you a huge edge in your Week 7 DFS and season-long Fantasy picks. 

So how can you use Vegas lines to crush your Fantasy lineups this week? And which undervalued receiver should you be all over? ... Join SportsLine now to see Jen Ryan's guide on how odds and Fantasy can work together, all from a proven Fantasy and Vegas expert!