Who to watch on Celtics summer squad, plus what's left on Boston's summer to-do list

<p>Chris Forsberg and John Karalis preview the Celtics Summer League. Which players should Celtics fans be looking forward to watching?</p><p>1:00-Players to keep an eye on in Summer League&nbsp;</p><p>3:30-Expectations for Sam Hauser</p><p>11:30-Can the Celtics find value in Juhann Begarin?</p><p>22:30-What's left on Boston's summer to-do list</p><p>Watch on YouTube: <a href="https://youtu.be/8XVnWVk6hGw" rel="noopener noreferrer" target="_blank">https://youtu.be/8XVnWVk6hGw</a></p><p>See Privacy Policy at <a href="https://art19.com/privacy" rel="noopener noreferrer" target="_blank">https://art19.com/privacy</a> and California Privacy Notice at <a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer" target="_blank">https://art19.com/privacy#do-not-sell-my-info</a>.</p>