Complex sentence: Bogut's international career began by starring in Australia's 2003 Junior World Championship team, averaging 26.2 points and 17 rebounds per game including a 35-point, 14-rebound performance against Lithuania in the championship game.
Split into simpler sentences: Bogut's international career began with Australia's 2003 Junior World Championship team. Bogut was the star of the side, averaging 26.2 points and 17 rebounds per game, including a 35 point, 14 rebound performance against Lithuania in the Championship Game.