Beast Mode is calling it a career. 

Marshawn Lynch tweeted out his retirement Sunday night amid the fourth quarter of Super Bowl 50, posting a picture of his hanging cleats to mark the end of his nine-year NFL journey.

Lynch posted this photo on Twitter as his official retirement announcement.
Lynch posted this photo on Twitter as his official retirement announcement.

A Beast's Journey

The Seattle Seahawks' running back sat out for a large portion of the 2015 campaign, and despite that, made a lot of memories running out of the Seattle backfield. Lynch became a Super Bowl champion in 2014 with the Seahawks, and additionally was named First Team All-Pro in 2012. 

Lynch was drafted into the National Football League out of California in 2007 by the Buffalo Bulls, going 12th overall in that year's draft. After three-and-a-half seasons with the Bills, he was traded to the Seahawks, where he assumed the role of starting halfback for Seattle. 

Beast Mode lived up to his name while carrying the ball in front of Seattle's 12s, pulling off two sensational 'Beast Quake' runs that caused seismic tremors in the Emerald City. He finished his career with 9,112 yards and 74 touchdowns on the ground while adding 1,979 yards and nine scores in the passing game.

There had been murmurs of Lynch having informed his friends of plans to retire, and after opening up an official store under the Beast Mode brand name in his hometown of Oakland, he seems to have his plans laid out for retirement.

Seattle Lucky To Have A Backup Plan

Seattle is lucky to have been revealed a backup plan in 2015 after Lynch went down with an injury, as undrafted rookie free agent Thomas Rawls broke out to become one of the league's rushing leaders. The torch has now been passed to Rawls, who will try to live up to the monumental expectations he holds, now the Seahawks' star back.