29 NFL free-agent signings that resulted in epic failure

Deion Sanders, Larry Csonka and Orlando Pace were among free-agent signings that did not work out for new teams.

David Boston

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The Chargers gave David Boston a seven-year, $47.4 million contract in 2003, and got one one year out of him. The Chargers won four games with Boston on the roster, and the receiver turned into a locker-room liability. He was suspended for one game for conduct detrimental to the team, and then dealt in 2004 to the Miami Dolphins.