James reportedly “furious” over Gilbert’s letter

After LeBron James announced he was going to sign with the Miami Heat on Thursday night, Cavaliers owner Dan Gilbert wrote a scathing open letter to Cavalier fans regarding James’ departure.

According to Brian Windhorst of the Cleveland Plain Dealer, the letter did not go unnoticed by James:

This is obvious, but word is LeBron furious over Gilbert letter. This feud isn’t over, whether it expands now depends on if LJ responds.

The Cavs-Heat rivalry was already going to be something to watch next season. If there’s animosity on both sides, this could get ugly and explosive yet. LeBron James may be done playing for Cleveland, but something tells me that it will take James and Cleveland a long time to sort out their unfinished business.