If Zeller also leaves, Crean would be replacing four starters—Jordan Hulls, Christian Watford, Oladipo and Zeller—next season.
Crean signed six players during the fall despite having only three graduating seniors. Oladipo’s decision will clear another spot and if Zeller leaves early, that would create a fifth opening.
For the first time publicly, Crean acknowledged Tuesday that they were preparing all along for the likelihood of more than one player leaving early for the NBA this spring.
‘‘That’s one of the reasons we oversigned. There’s no question,’’ he said. ‘‘Was that a given? Absolutely not.’’