The blockbuster trade between the Cleveland Cavaliers and Boston Celtics, that saw the teams swap All-Star point guards Kyrie Irving and Isaiah Thomas, is surprisingly in danger of not being completed. 

After undergoing a medical with the Cavs on Friday, Thomas' current hip injury appears to be worse than the Celtics initially stated. 

Therefore, the Cavaliers are considering voiding the deal, which they are entitled to do if a player fails a medical examination. 

With the two teams announcing the trades, it's hard to see either player returning to play for the franchises that decided to offload them and according to reports, Cleveland is willing to reach a compromise to avoid that scenario.

Per Adrian Wojnarowski of ESPN, the Wine and Gold will contact Boston and seek to acquire more trade assets to get this deal over the line. 

The C's have already included Jae Crowder, Ante Zizic and the Brooklyn Nets' unprotected 2018 first-round pick, so it will be interesting to see if they're willing to part with more to ensure they gain the services of Irving. 

Wojnarowski said: "Cavaliers officials may try to make the case that Boston undersold them on the scope of the Thomas injury, and more specifically, how soon Thomas could be prepared to play this season."

With the 28-year-old entering the final year of his contract, the Cavs are keen to get him on the court this season and to play a significant part in their quest to land another championship. 

It is believed that the teams discussed details of IT's injury and general manager Danny Ainge told reporters that it played "some" part in their decision to ship the two-time All-Star. 

Thomas suffered the injury in the Eastern Conference finals against Cleveland and the Celtics decided that surgery wasn't required and instructed the player to undergo a period of rest and rehabilitation.

But according to ESPN, he has yet to begin a regimen of running this offseason and it seems extremely unlikely that he'll be ready for the start of the new campaign in October.

Besides its own future first-round picks, Boston has access to future protected picks from the Los Angeles Lakers in 2018 and the L.A. Clippers and Memphis Grizzlies' in 2019 if they wish to include any of them.

With LeBron James also entering free agency in 2018, it will be in the Cavaliers' best interests to get this deal completed and surround their superstar with a roster worthy of competing for another title. 

The two teams meet on the opening night of the season and that encounter on 17 October is becoming more significant by the day.