The Buffalo News quoted Incognito as saying, "I'm done".
Incognito, 34, told the Buffalo News on Tuesday that health concerns are forcing him to walk away from the game.
He said that during a recent visit to a doctor, he was told, "Listen, the stress is killing you, what are you doing?" and he replied, "Listen, I'm just doing what I love, and that's playing football".
Later, he mentioned the Twitter accounts of the NFLPA and the union's assistant executive director, George Atallah, in a note that read, "I'm done", followed by a winking emoji with its tongue stuck out.
Richie Incognito has had a pretty interesting career.
After being drafted by the Rams, Incognito racked up personal fouls and other ugly incidents, and he was released late in the 2009 season.More news: Hamilton hit by grid penalty in Bahrain
If this is indeed it for Incognito, it has been an odd 11-year career.
Incognito was suspended midway through the 2013 season and never played a down for the Dolphins again.
That launched an inquiry that lasted months by NFL-appointed investigator Ted Wells, who determined that Pouncey, Incognito and Jerry engaged in a pattern of abuse. It was heavily hinted at by Martin that he was bullied by the former Cornhusker because he was black. After suiting up for 11 seasons in the National Football League, he's near the end. Martin wrote suicide and revenge were the only options for a victim of bullying.
In 2015, after serving a suspension for the bullying, Incognito did move to the Bills where he apparently finished out his career in the last three years.
According to Peter King, with Sports Illustrated, the Buffalo Bills guard is "strongly considering" retirement. Centre Eric Wood retired due to a neck injury, while left tackle Cordy Glenn was traded to the Cincinnati Bengals.