The former Boston College Eagle came to the Seahawks in 2001 in a trade with the Green Bay Packers. Unfortunately for Hasselbeck, the beginning of his Seahawks career did not start out as everyone had hoped.
In 2002, he was eventually replaced by Trent Dilfer. However, after Dilfer suffered a season-ending injury, Hasselbeck led the Seahawks on a three-game winning streak to end the 2002 season.
As a result of that, he entered the 2003 season as the starter and led the Seahawks to a 10-6 record and a wild-card berth against the Green Bay Packers. He made the famous "We want the ball, and we're gonna score" call in this game.
In 2005, Hasselbeck had his most productive season as a Seahawk, leading the NFC in passer rating and the Seahawks to the best offense in the NFL. The Seahawks made their first-ever Super Bowl, losing a heart-breaker to the Steelers, 21-10.
Hasselbeck is a three-time Pro Bowler (2003, 2005, 2007) and is the Seahawks all-time passing leader.