BOSTON (CBS) — Boston, Cleveland and the rest of the basketball world has now had several days to react to the shocking blockbuster trade of Kyrie Irving for Isaiah Thomas.

But according to a new report, the deal has a chance of getting nixed.

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ESPN’s Adrian Wojnarowski reported late Friday night that Thomas — who’s dealt with a nagging hip injury that ended his postseason early — underwent his physical exam for the Cavs. And apparently, the results of that exam require further evaluation from the team’s doctors.

And if the doctors determine the problems with the hip are significant, the deal could be voided.

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The Celtics also sent Jae Crowder, Ante Zizic and the 2018 first-round pick of the Nets to Cleveland in the trade.

Typically, trades aren’t voided after the fact, as welcoming back a player who was traded can generally be a difficult thing to do for any team. And given the circumstances of Irving requesting his exit from LeBron James and Thomas’ being traded after an MVP-caliber year in Boston, it would still seem unlikely that this deal would get reversed.

Yet Wojnarowski does not report without information, so the situation of course warrants monitoring.

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The Ringer’s Kevin O’Connor speculated that the Cavaliers may use the status of Thomas’ hip to request another pick from the Celtics.