Could anything outside of injuries derail the Celtics?   11:15 Terry Rozier and Kyrie Irving have great relationship   24:04 Danny Ainge telegraphed the summer plans right after the draft   31:25 Stevens: Marcus Smart gave me the most chills last season   Available for download on iTunes and Stitcher on Sunday, September 9th, 2018. Celtics Beat is powered by Casper and Boston Barber & Tattoo Company. Get $50 off select mattresses by going to Casper.com/CELTICS and use the promo code CELTICS at checkout      Learn more about your ad choices. Visit megaphone.fm/adchoices