Richie Incognito was suspended by the Miami Dolphins for conduct detrimental to the team in November of 2013 after reports surfaced accusing him of bullying his teammate Jonathan Martin. He was suspended for the remainder of the season and his contract was up at the end of that year making him a free agent.
He was unable to find a job with a team in the 2014 offseason. He was a good guard with the Dolphins but apparently he was not talented enough for a team to take a chance on him considering what they perceived to be character issues.