Under Armour announced plans to launch “I Will,” its biggest ever global marketing campaign. The campaign launched on Feb. 12  globally online and debuts on television in the US on Saturday, Feb. 16 on TNT during NBA All-Star Weekend.

At a press event in New York City, the brand unveiled the campaign’s principal creative spot featuring Canelo Alvarez, boxing’s welterweight World Champion, Sloane Stephens, the only teenager ranked in the top 20 in the WTA, Bryce Harper, the reigning National League Rookie of the Year, and Kemba Walker, who is currently leading his NBA team in points, assists and steals per game. Featuring Under Armour’s iconic I WILL trademark, the campaign brings to life the passion and determination that drives all athletes and Under Armour’s commitment to engineering innovative products that provide real performance advantages.

Under Armour CEO and Founder Kevin Plank and Chief Operating Officer Kip Fulks introduced the new campaign and the brand’s latest product innovations with the help of NFL Pro Bowler Arian Foster and former MMA Champion and Hollywood star Gina Carano.

“Ten years ago Under Armour became a household name when the brand asked athletes everywhere to Protect this House. The response in the iconic commercial, and throughout the years, has been the same: I Will,” said Plank. “Today, Under Armour inspires the next generation of athletes to unleash their inner resolve and our I Will trademark confirms our promise to continuously redefine the future of performance through innovation that will help give athletes an edge.”

The campaign launched today globally online and debuts on television in the US on Saturday, February 16th on TNT during NBA All-Star Weekend. To view the full spot please visit http://www.youtube.com/watch?v=oYCvIr0fWnM. The spot will also air on multiple networks including ESPN and MTV. Other elements include digital, OOH, grassroots, international extensions, a social competition and a new microsite, IWILL.ua.com launching on February 15th.

The brand also showcased its Armour39 system– a first of its kind digital performance monitoring system designed to uncover the potential within all athletes that train to get better. Launching in March 2013, the system provides a single score Willpower measurement that reflects an individual’s overall effort during a workout session. The Armour39 system also tracks heart rate, calories burned, and intensity. Designed to seamlessly integrate into any workout, Armour39 allows athletes to uncover precise information about their training and athletic potential.

The brand also previewed the UA Spine Venom and Micro G Toxic Six from the 2013 performance footwear collection and the new ColdGear Infrared insulated apparel collection.

To follow the I Will story and learn more about Armour39 and Under Armour innovation, visit www.facebook.com/underarmour and @UnderArmour with #IWILL.