MEMPHIS – “Grasshopper!”
That word emphatically shot out of Kevin Garnett’s mouth. Then, the former NBA superstar leapt from his seat with both arms raised above his head as if he were clutching a basketball.
Seated next to Garnett inside the Grizzlies’ film room on a recent afternoon, Jaren Jackson Jr. flinched at the sudden burst of energy, motion and emotion Garnett flashed as the play unfolded on the screen.

“Stop it there for a second,” Garnett demanded as the video was paused just as Jackson caught a mid-post entry pass during a Jan.