Watch: Jaylen & Terry ball out while Williams practices with the SL team

The Boston Celtics youth movement is hard at work over the offseason.

Of course, Robert Williams got off to a bit of an infamously rough start, but he's putting in work with Guerschon Yabusele and the rest of this summer's Celtics Summer League crew, looking pretty good in the footage we've found.

As we showed you earlier this week, Jaylen Brown continues to wreck shop in Atlanta, playing in the  AEBL (Atlanta Entertainment Basketball League) with Lou Williams, Josh Smith, and others in a pro-am tourney not far from his hometown of Marietta, Georgia.

Terry Rozier is no slouch either, spending his summer throwing down at Dyckman Park, participating in their near-legendary summer basketball tournament with a fairly hefty dose of star power at the highest division, too - LeBron James newest (and arguably most head-scratching - or should I say ear-blowing?) teammate Lance Stephenson has also been getting busy.

Watch the videos above to see all the Celtics most-recent draftees not named Jayson (we hear he's been busy putting on some muscle, don't worry) have been working on their craft, and I don't know about you, but I'm already antsy to see the results.

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Video: Boston Celtics, Overtime, TakeFlightHoops
Image: AEBL/Twitter
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