The Cleveland Cavaliers are seeking further compensation from the Boston Celtics following the physical of Isaiah Thomas. The Cavaliers could elect to veto the trade if the Celtics don't agree to send additional assets.

The Celtics and Cavaliers agreed to a trade this week of Kyrie Irving for Thomas, Jae Crowder, Ante Zizic and Brooklyn's 2018 first round pick.

The deadline to report and submit to a physical for the players involved in the trade is 10 a.m. on Wednesday, and the deadline to pass the physical is 10 a.m. on Thursday. 

Thomas was forced out of the Eastern Conference Finals in May due to a hip injury that he hasn't had surgically repaired this offseason. Thomas will be an unrestricted free agent in 2018. The Celtics operated under the assumption that they were clear with the Cavaliers on the physical status of Thomas. Danny Ainge admitted that the injury status of Thomas played some role in the decision to trade him.

Irving requested a trade from the Cavaliers in July and it took them approximately a month to agree upon the trade with Boston.