Come serve it up with TGA Premier Youth Tennis at your school! TGA is an introductory program that has partnered with the United States Tennis Association to create a fun and innovative tennis program for your child that takes place after school on campus. TGA s 5 level elementary school curriculum includes games, drills and physical fitness activities that improve motor skills, agility and hand-eye coordination. Every TGA class focuses on academic concepts developed by educational experts, the rules and etiquette of tennis and skill development.