Warrior Martial Arts Academy, located at 3400 Preston Road, Ste. 220, in north Plano, held its grand opening Feb. 25. The academy offers classes on mixed-martial arts for kids, Brazilian jiujitsu and muay thai-style kickboxing, according to its website. Warrior Martial Arts academy also has locations in McKinney, Frisco, Little Elm and Flower Mound. 972-544-7063. www.warriormartialartsacademy.com