Report: Under Armour inks Harper to largest deal in MLB history

Washington Nationals superstar Bryce Harper and Under Armour have agreed to a reported 10-year extension on his endorsement deal.

According to ESPN's Darren Rovell, it would be the largest deal in history for an MLB player. Terms of the deal have yet to be revealed.

Under Armour currently has Harper under lock for five years, having signed him in April 2011, 10 months after the Nationals made him the first overall pick in the draft. He was in Single-A when he signed that deal and made it to the bigs a year later.

The company will begin selling his first signature cleat, the Under Armour Harper One, in July. Harper's new contract will keep him in the company's gear until 2026.

With the deal, Under Armour continues its streak of keeping MVP players across most major sports under its brand.

Under Armour also has reigning NBA MVP Steph Curry signed through 2024 and PGA Tour Player of the Year Jordan Spieth inked through 2025.

Under Armour also has Carolina Panthers quarterback Cam Newton, New England Patriots quarterback Tom Brady, Los Angeles Dodgers lefty Clayton Kershaw, San Francisco Giants catcher Buster Posey, and Montreal Canadiens goalie Carey Price under contract.