Complex sentence: As it turned out, the Aussies didn't make the semifinals or even the quarterfinals; they were upset by Turkey in the Round of 16,65-64; immediately afterwards, FIBA announced that the Boomers were under investigation for tanking.
Split into simpler sentences: As it turned out, the Aussies didn't make the semifinals or even the quarterfinals; they were beaten by Turkey in the Round of 16,65-64. Immediately afterwards, FIBA announced that the Boomers were under investigation for tanking.