WALTHAM  –  Kevin Garnett had a polite warning following Thursday’s practice for all of those who think he might have lost a step and is not as dangerous on his patented alley-oop play with Rajon Rondo.

Just try us.

“Rondo and I have a connection where I don’t think you can really play that play because if you go back it’s a pick and roll and if you go up too far, it’s an oop,” Garnett said of the highlight below that happened with three minutes remaining in the third quarter of Wednesday night’s blowout win over the Jazz.

Paul Millsap was the Utah player caught in defensive no-man’s land, as he pinched up. Garnett gave a shake as if he were cutting in front and went behind.

“Then if the guy on the bottom [post] wants to stick his nose in there, he ends up like that guy last night,” Garnett said. “It’s not even a play. It’s more of a read in playing basketball than anything.”

That guy, by the way, would be Kyrylo Fesenko, the player who came from the weak side and appeared to foul Garnett on the play, but none was called.

“It was a foul,” Garnett said. “You don’t have to say it. I’ll say it for you.”