You have to read it to believe it, but Dan Gilbert held nothing back in an open letter to fans posted on Cavs.com.

He said that LeBron “deserted” Cavs fans with a “several day, narcissistic, self-promotional build-up.”

He said Cavs fans “simply don’t deserve this kind of cowardly betrayal.”

Then he said this:

“I PERSONALLY GUARANTEE THAT THE CLEVELAND CAVALIERS WILL WIN AN NBA CHAMPIONSHIP BEFORE THE SELF-TITLED FORMER ‘KING’ WINS ONE”

Wow.

There’s much more – read the whole thing.

This is why Cavs fans love Dan Gilbert. It’s hard to imagine the Cavs making a quick comeback, but having a dedicated owner willing to spend millions of dollars is critical to success in the NBA.

Finally, Gilbert also said this:

“There is so much more to tell you about the events of the recent past and our more than exciting future. Over the next several days and weeks, we will be communicating much of that to you.”

I suspect we’re going to be hearing a little more about LeBron’s game 5 meltdown and the circumstances surrounding it. We should expect nothing less after reading this letter. Stay tuned . . .

UPDATE: Gilbert just told the AP that James “quit” on the Cavs during the Celtics series. Ouch! He goes on to say that “people have covered up for (James) for way too long. Tonight we saw who he really is.” Like I said, expect much more . . .