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

Chris Forsberg and John Karalis preview the Celtics Summer League. Which players should Celtics fans be looking forward to watching? 1:00-Players to keep an eye on in Summer League 3:30-Expectations for Sam Hauser 11:30-Can the Celtics find value in Juhann Begarin? 22:30-What's left on Boston's summer to-do list Watch on YouTube: https://youtu.be/8XVnWVk6hGw