Complex sentence: It was also announced later in the year that he had failed a doping test due to unusually high testosterone levels, he was later cleared as the rise in testosterone was due to a large amount of alcohol being consumed by the player the night before the test.
Split into simpler sentences: It was also announced later in the year that he had failed a doping test due to unusually high testosterone levels. He was later cleared as the rise in testosterone was due to a large amount of alcohol being consumed by the player the night before the test.