Report: Giancarlo Stanton will make $31 million in first 3 years of new deal

Miami Marlins outfielder Giancarlo Stanton's 13-year, $325 million contract is heavily backloaded per his request to allow the team to surround him with other top players, ESPN's Jayson Stark reports.

Stanton, 25, will make just $31 million during the first three seasons of his new contract. He will earn $6.5 million in 2015, $9 million in 2016 and $14.5 million in 2017. He has a full no-trade clause for the duration of the contract and can opt out after the 2020 season.

If he does opt out, he would be leaving seven seasons and $218 million of guaranteed money on the table.

Stanton led the National League with 37 home runs despite missing the end of the season after being hit in the face by a pitch and finished second in MVP voting behind Los Angeles Dodgers pitcher Clayton Kershaw. During his five-year career with the Marlins, Stanton has hit 154 home runs and made two All-Star Games.

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Stanton's new contract is the largest in the history of American sports, topping Alex Rodriguez's 10-year, $275 million contract with the New York Yankees. Miguel Cabrera signed an extension with the Detroit Tigers earlier this year that pushed his contract to 10-years, $292 million.

The Marlins finished 77-85 last season and in fourth place in the NL East.

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- Paul Palladino