Under Armour set for first major league partnership with MLB kit deal

US sportswear brand Under Armour has agreed a kit deal with North America’s Major League Baseball, according to multiple reports.

The deal, which will become effective in 2020, will reportedly name Under Armour as the official on-field uniform provider for MLB. Under Armour will replace sportswear apparel provider Majestic in the role.

The deal will mark Under Armour’s first with a major professional league but is yet to be officially announced.

ESPN.com, citing team sources, said the deal will also give online sportswear retailer Fanatics rights to produce and customise jerseys and sell them at retail. Fanatics already runs MLB’s online store.

In March 2015, Majestic extended its long-running deal with MLB until the end of the 2019 season.

Under the agreement, Majestic retained exclusive rights to design, produce, and distribute on-field uniforms, authentic collection apparel, replica jerseys and an assortment of men’s and women’s fan apparel. Majestic has produced MLB jerseys since 2005.