Complex sentence: In June 2011 Williams was suspended for 10 games and fined 10% of his salary after testing positive for a performance-enhancing drug, "methandienone metabolites", which he ingested as part of an over-the-counter supplement he purchased at a drugstore.
Split into simpler sentences: In June 2011, Williams was suspended for 10 games and fined 10% of his salary after testing positive for methandienone metabolites, a performance-enhancing drug. The positive test came after Williams had used an over-the-counter supplement he purchased at a drugstore.