Mason Jr will appear on Jim Rome on Showtime tonight and in a teaser for the interview, the vice president asserted his view that the league's biggest name could well sit if a deal for the Clippers cannot be arranged.
Mason Jr said: "I was just in the locker room three or four days ago. LeBron and I talked about this. He ain't playing if Sterling is still the owner."
This seems like a strong threat from LeBron James, who carries a lot of clout amongst players. However there is one problem, there is no deadline for Sterling's sale of the Clippers and for good reason.
A sale will be an ugly, long, drawn out process and it will most likely take many months to identify a buyer and negotiate a price.
There is definitely no guarantee that a new owner will be in place in time for the start of the 2015 regular season and Adam Silver could certainly do without an ultimatum from LeBron.
It's possible that James is simply floating this idea as a catalyst for the league to force through a sale and rid themselves of Donald Sterling as quickly as possible.
However the issue is largely out of the league's hands now and the loss of their main star player will simply hamper the progress of the NBA.
Here's hoping that LeBron can be dissuaded from this idea for the sake of basketball and the NBA.