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Stars who are currently endorsed by Nike received a letter stating that they’ll lose their deals if they continue to personalize their cleats. Hit the jump for details.

Via TMZ:

Several NFL stars have received letters from Nike — warning the players to stop customizing their cleats … or else Nike will KILL their endorsement deals … TMZ Sports has learned.

Cleat customization is all the rage in the NFL right now — with big stars like Marshawn Lynch, DeSean Jackson, Terrell Suggs, Reggie Bush and more taking their shoes to famous artists to swag out before games.

But after Nike got word of the customizing fad, they sent out letters to players reminding them that the point of the deal is make sure the Nike Swoosh is visible on TV during games … and customization could get in the way.

Click here to see letter.

Click above gallery for pictures.

Tavia HartleyIFWT