The oft-injured big man needed another arthroscopic procedure last March, and he's made only 61 regular-season appearances over the past three campaigns. Donovan Clingan is Portland's starting center after Deandre Ayton left in free agency, while rookie first-round pick Yang Hansen will likely be the backup, even when Williams is healthy. Williams is expected to be ready for training camp, but how long he'll last and what kind of limitations he'll face are serious questions that drop him down fantasy rankings. When he was playing 20-plus minutes, blocking shots and finishing lobs for Boston, Williams was a top-150 fantasy asset. However, those days are long gone. Even if Williams plays 50 games and averages 15 minutes a night, it'll be difficult for him to return top-300 value in his current situation with a limited skill set.