Sharpe was quick to reply:
In 2013, Sharpe ridiculed Moss' declaration that he was the best wideout in NFL history.
"Moss is out of his mind," he said. "I mean, you can debate every position in the NFL as to who's better, but the only position you can't debate is wide receiver. It's Jerry Rice. It's not even close."
While it's unlikely those comments sparked Moss' current displeasure five years later, perhaps this feud has been boiling under the surface for a while.
Whatever the reason, it's now out for the public to see.