BOSTON -- Jaylen Brown really seemed to enjoy a clinic the Boston Celtics hosted Wednesday at the Madison Park Community center. The No. 3 overall draft pick defended children going through dribbling drills. He offered advice about establishing goals and the importance of education. He chatted with kids, took pictures with them, and, yes, even dunked on one trash-talking child.

"You have to have that instinct," Brown smiled after the clinic, which was put on to celebrate the Celtics' renovations of the Roxbury gym. "He challenged me and I just blacked out. He said, 'You ain't good.' He said Ben Simmons (the No. 1 overall draft pick) is better. So I said alright, OK."

And then Brown crossed the kid over, dribbled by him and slammed home an easy one-handed slam:

Brown won't always be guarded by middle schoolers. Beginning next week, he will perform on the Celtics summer league entry against other draft picks and NBA hopefuls.

"I've been working on a lot previously leading up to summer league, so I'm ready to show a lot of that stuff off," said the 19-year-old wing. "I'm ready to show progression, ready to get out with my teammates, just play the right way, and have fun."

"This is where the rubber hits the road," Brown added. "Now it's time to prove everybody that I'm worth being the No. 3 pick, and it's time for everybody to prove themselves trying to get to that 18th banner. So I'm going to do everything possible while I'm here to contribute to that. I know it takes a long process but I'm willing to put in the work. I'm willing to sacrifice what needs to be sacrificed. I'm ready to go."