LeBron James wore a cast on his right hand to the podium for his postgame press conference after Game 4. James only wore the cast after it had been reported he suffered a severe contusion by punching a white board after Game 1. James would not have worn the cast had that report not surfaced.
James' camp did not leak news of the injury.
James' teammates and coaches all knew what had happened and it was surprising to some degree that news of the injury hadn't been leaked sooner.