They spoke to the AP on condition of anonymity because the team is not publicly discussing its plans. According to the NBA's collective bargaining agreement, a trade can be voided if a player fails his physical. The Cavaliers and Celtics have until Wednesday to finalize the trade, pending the completion of physicals. The Cavs could also request the Celtics alter the trade by giving them another player or pick. The Cavs were well aware of Thomas' condition before the trade and were prepared to have their doctors examine him — as they would for any trade.

Source: ABC News August 26, 2017 14:50 UTC