Complex sentence: The Nike Hoop Summit is a basketball game that is held once a year that is comprised of High school players from America, as well as from around the globe to demonstrate their skills and hopefully create attention from either NBA scouts or Colleges.
Split into simpler sentences: The Nike Hoop Summit is a basketball game held once a year that is comprised of high school players from America, as well as from around the globe. The players demonstrate their skills and hope to attract attention from either NBA scouts or Colleges.