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Richard Sherman

Tweet from Lynch indicates possible retirement

Marshawn Lynch was at the center of attention in the fourth quarter of the Super Bowl on Sunday night.

Except this time, Lynch may have given the surest sign he's on the verge of retirement.

Lynch, the mercurial Seattle Seahawks running back, sent a tweet during the fourth quarter of Sunday's game with a pair of cleats hanging from a power or telephone line, along with an emoji depicting a peace sign. It certainly wasn't a definitive statement that Lynch is ready to call it a career, but fit with mounting evidence that the bruising running back is ready to move on from football.

The Seahawks official Twitter account later added the hashtag #ThankYouBeastMode to...