Athletes far too rarely chuck the cliches and speak honestly from their unique individual perspective. But that’s exactly what Kevin Garnett did in last night’s post game press conference after he lead the “ancient” Celtics past the upstart Atlanta Hawks to win Game 6 of their first-round playoff series.

Leading up to the game, Hawks owner Michael Gearson, Jr. called KG “the dirtiest guy in the League,” and said that he was too old to be effective anymore. But KG took exception to those words, despite Gearson’s money. Or maybe, because of it.

“First off, I want to say thanks to their owner for giving me some extra gas tonight,’’ KG said. “My only advice to him is next time he opens his mouth, he actually knows what he’s talking about, X’s and O’s versus checkbooks and bottom lines.”

That “extra gas” fueled Garnett to what many are calling his best game ever in a Celtics uniform. So much for being too old.

“I just found that comment to be a little rude and a little out of hand and I wanted to address it,” continued KG. “Just because you got a bunch of money don’t mean you can open your mouth.’’

Ouch.

A little something for Gearson to reflect on as his team begins their off-season preparation for next year.