Under Armour launches 'I Will' marketing campaign

Under Armour Inc. on Tuesday unveiled its biggest marketing campaign to date, showcasing the sportswear maker’s crop of young endorsers oufitted in the company’s latest products.

The campaign, dubbed “I Will,” includes athletes like Canelo Alvarez, boxing’s welterweight World Champion; Sloane Stephens, the only teenager ranked in the top 20 in the Women’s Tennis Association; and Bryce Harper, the reigning National League Rookie of the Year.

At a press event in New York, Under Armour…