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01.23.2026

Under Armour Welcomes KJ Jackson as Latest Brand Ambassador

KJ at UA HQ
KJ at UAHQ

  • Under Armour has added KJ Jackson to the UA Roster, celebrating his rise as a fan-favorite player with the Savannah Bananas and his deep personal connection to the UA brand, KJ is the latest UA Ambassador.
  • KJ’s unexpected journey to the Bananas includes overcoming a spinal injury at Kent State, nearly pursuing an acting career, and ultimately earning a protected roster spot after standout performances—most notably a historic triple play in the 2025 Banana Ball All-Star Game.
  • As the UA Baseball Roster deepens its presence on the field, KJ brings authenticity, charisma, representing  his unique talents and the UA brand on and off the  field.

Under Armour is proud to welcome KJ Jackson to its growing roster of athletes ahead of his second season with the Savannah Bananas. After a breakout rookie year with the viral exhibition baseball team known for its dynamic entertainment performances globally, KJ has quickly become a fan favorite. As an Under Armour Brand Ambassador, he’ll represent the brand on and off the field, sporting UA footwear and gloves in competition and showcasing the latest styles as he continues to bring fans along for the ride on social media.

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KJ at UAHQ Signing Make You Famous Wall
KJ UA Mit

“It means the absolute world to me to partner with Under Armour."

"Being from Ohio, I grew up wearing the brand, had all the ColdGear® and my college was an Under Armour school.”

KJ Jackson.

KJ’s journey to Savannah is one he could have never predicted. Growing up in Northwest Ohio, he committed to playing baseball at Kent State University after his freshman year at Bowling Green High School. His time with the Golden Flashes wasn’t without challenges. He suffered a spinal injury his sophomore year but battled back to deliver standout junior and senior years as a starting infielder. When his senior season was done, KJ’s plan was to hang up his cleats, put his theatre minor to use and pursue acting or Broadway. Following conversations with his coaches and his mom, he decided to attend tryouts for the Savannah Bananas who happened to be in town. Less than 24 hours later, he got the call and officially joined the Banana Ball organization.

 

In 2024, KJ started with the Bananas’ development team, The Visitors, before being elevated to the Bananas main roster. His first full season came in 2025, where he quickly became a fan favorite. In October, during the 2025 Banana Ball All-Star Game vs. Clemson, KJ recorded a historic triple play, only the second triple play ever recorded in Banana Ball history. Ahead of the 2026 season, fans voted KJ as one of just three players to be protected on the Bananas roster, further cementing his place as one of the team’s most beloved stars.

KJ meeting UA Employees
KJ Signing Wall in US Flagship Brandhouse
KJ meeting Welcomed to UA

As Under Armour continues to deepen its presence in the sport, KJ brings an authentic love for both the game and the brand, making him a natural fit for the Under Armour roster.

 

“From growing up loving the gear, wearing the Bryce Harper cleats - having all the swag - to now being able to represent UA, it’s a big blessing. I look forward to stepping into this new chapter of my life and representing a brand that has always had a high standard, loves its people and shows up authentically.”

 
KJ Jackson
 

Welcome to the Squad, KJ.

Shop KJ's Favorites

To shop some of KJ Jackson’s favorite items including the Harper 10, ColdGear® and UA Unstoppable Cargo Pants, visit underarmour.com.

 

Take Me to Shop UA
KJ Shopping UA Brand House