Luis Alvarez/Associated Press
Contract: 7 years, $100 million ($41 million guaranteed)
During his tenure with the Tennessee Titans, Albert Haynesworth was one of the most feared defensive players in the league. While he was mostly feared for his ability to get after the quarterback, he was known for his temper and on the field incidents.
In a game against the Dallas Cowboys in October of 2006, Haynesworth stomped on Cowboys' center Andre Gurode and he was eventually suspended five games for his actions.
Despite his actions, he continued to be a force on the field and he amassed 14.5 sacks combined in 2007 and 2008 and was named to the Pro Bowl and All-Pro teams both seasons.
Haynesworth hit the free agent market following the 2008 season and was widely regarded as the best free agent available.
In late February of 2008, Haynesworth signed a seven-year, $100 million deal with the Washington Redskins that included a then NFL-record $41 million in guaranteed money. During the first 13 months of the contract, Haynesworth would earn approximately $32 million (via ESPN.com).
His tenure in Washington started off rocky when he declined to participate in the team's offseason workouts and was unable to pass the Redskins' basic fitness test (via The Washington Post).
He clashed with defensive coordinator Greg Blache and his 3-4 scheme, telling Jason Reid and Dan Steinberg of The Washington Post at the time that he couldn't "survive another season in this system if it stays the way it is."
The final straw came in 2010 when the team suspended him for the final four games of the season for conduct detrimental to the team (via CBSNews.com).
The team traded him to the New England Patriots in the summer of 2011 for a fifth-round pick. He lasted six games in New England before being released. He was signed by the Tampa Bay Buccaneers for the remainder of the season before the team released him in February of 2012.
Former teammate Chris Cooley shed light on the situation, telling ESPN 980 (via The Washington Post) in 2013 that:
(Haynesworth) was TRYING to get released by the team. His goal was to come here, make a large signing bonus, and then get released and not have to do any of the work. He didn't care about the back end of that contract, he didn't care about making all of that money. His idea was, you paid me for what I did in the past, and my goal is to be released as soon as possible and basically take $33 million from you for absolutely nothing.
Given the amount of money he was paid, combined with his lack of production, Albert Haynesworth goes down as the worst free agent signing in NFL history.