Long before the future stars of the NBA are wearing their team jerseys, they’ll be wearing a lot of Under Armour — thanks to a new partnership set to be announced by the league and apparel company later today.

Under the new deal, the Baltimore-based company will be the presenting partner of the league’s youth basketball program, Jr. NBA, and will also be the title partner of the NBA Draft Combine beginning in 2018 — a deal that the league describes as one that represents a “significantly expanded partnership” between the two companies.

“It’s a huge deal and we couldn’t be more excited about it as we continue to build our brand and our business around the sport of basketball,” said Adam Peake, Executive Vice President, Global Marketing, Under Armour.

With Under Armour as its presenting partner, the NBA hopes to expand its youth league to include five million boys and girls between the ages of 6 and 14 in the next two years through clinics, skills challenges and tournaments.

As the title partner of the NBA Draft Combine — an invite-only showcase of the top expected draft picks — beginning in 2018, Under Armour will develop a retail line of apparel for fans.

“It’s the biggest job interview of their life,” Peake said of the Draft Combine. “If we can play a part in that by providing them the best gear even if it gives them the slightest edge … that’s what we feel what our part is in this.”

Under Armour, the newest company to compete with Nike, Reebok and Adidas in the basketball apparel and equipment market, has been a partner of the league since 2011. Its spokespeople include Steph Curry, the 2015 NBA MVP.

“Clearly they’ve done a fantastic job selecting their endorsers and the partnership they have with Steph is something that’s fueled a lot of their growth in basketball on the global level and something that has driven so much of the opportunity that we collectively see together on their role in basketball,” said NBA executive vice president Emilio Collins.

The two are also partnering on the NBA Fit mobile app, which will provide training tips among other features.