Marshawn Lynch knows how to save money. He’s made nearly $50 million in his NFL career, but he hasn’t spent a cent of it.

“Marshawn Lynch has a lot of money,” Ian Rapoport of the NFL Network said. “He hasn’t spent a dime of his actual playing money … ever.”

Instead, Lynch has been relying on the approximately $5 million he makes per year through his endorsement deals with Nike, Pepsi, Skittles, Progressive, and Activision.

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The $49.7 million that Lynch has been sitting on will be a tidy nest egg when he does retire, and the rumors are that he’s on his way out. John Schneider, the Seattle Seahawks’ general manager, recently said that he understood that Lynch was “leaning toward retirement.

Although Lynch has technically issued no official announcement, his tweet of a peace emoji with a picture of his cleats suspended from a telephone wire, suggests he’s hanging them up for good.

Seahawks owner Paul Allen and Beast Mode’s agent Doug Hendrickson both expressed their gratitude to the running back on Twitter this week.

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“His days in Seattle, from what I understand, are over,” Rapoport said. “I would expect him to walk away after that.” Rapoport also said that he would be “surprised” if he saw Lynch come back next season.

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So, if Lynch is retiring, at least he’s got a good chunk of money to live off of. And if his thrift in keeping that nest egg untouched is anything to go by, we can expect him to make that money last well into his retirement.