Cliff AvrilThe Seattle Seahawks signed former Detroit defensive end Cliff Avril to a two-year deal for $15 million. 

Avril received the Lions' franchise tender last offseason and didn't sign his one-year, $10.6 million contract until a week after training camp began.

Avril turns 27 in April and finished last season with 9.5 sacks, 35 tackles, and 2 forced fumbles. Avril has 39.5 career sacks and 16 forced fumbles since 2008, when Detroit drafted him out of Purdue in the third round.

The move gives the Seahawks a clear advantage in the NFC West in their dual with the 49ers.  Earlier on, the Seahawks improved their passing game by trading for star receiver Percy Harvin from the Minnesota Vikings. 

Harvin brings a slot option and speed to boot, which means when running the Seahawks' offensive schemes, opposing teams will have three potential receivers and also the spread option to deal with defending.

The addition of Avril gives the defense a larger boost as they were sluggish in disrupting opposing pass plays last season, which ultimately cost them their shot at the Super Bowl with an early exit from the playoffs. 

Avril has speed off the corner and has a keen knack for closing up outer running lanes. He is arguably the best at disrupting pass plays, due to his agility and strength off the snap.

The Seahawks now have a team that's worthy of Super Bowl contention and perhaps the next dynasty is forming before our eyes. Perhaps that's wide-eyed thinking, but this team is now stacked and will be very difficult to defeat next season.