Under Armour announced today that it will become the official apparel sponsor of Major League Baseball via a new, ten-year deal that begins with the 2020 season. The deal is the first of its kind for Under Armour, which has never had a league-wide uniform deal like this in pro sports before.

The deal also includes Fanatics, which will hold licensing rights for the manufacturing and distribution of the new Under Armour MLB gear.

"Under Armour is proud of our long-standing relationship with MLB and we look forward to this exciting next chapter. This is a watershed moment for the Under Armour brand as this partnership with MLB and Fanatics furthers our collective dedication to bringing passion, energy and innovation to the game of baseball," said Kevin Plank, Under Armour's CEO and founder, via a press release. "Under Armour’s goal is to engage and excite MLB’s incredibly diverse fan-base across America and around the world, and grow the game for the next generation of great athletes."

Under Armour will take over from current sponsor Majestic Athletics, whose deal is set to expire at the end of 2019.

Under Armour was quick to change the baseball section of its website to reflect the new deal, with the page now featuring a banner placing the brand's logo alongside the MLB's.