Video: Celtics scrimmage highlights - Jaylen Brown's jam, Isaiah Thomas and son get fired up on sidelines

From the Celtics YouTube channel:



Below is another look at Jaylen Brown's monster dunk...

Jaylen Brown with another big fast break dunk for the #Celtics https://t.co/VkAjb22RBN

— CSN New England (@CSNNE) October 1, 2016

...and a closer view of a very enthusiastic father and son cheering on the reserves:

IT taking the scrimmage VERY seriously! #Celtics @CelticsCSN pic.twitter.com/shlxssJVJT

— Abby Chin (@tvabby) October 1, 2016

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