Celtics Highlights August 14, 2021 7:07 pm Highlights: Summer Celtics improve to 4-0 with dominant win Full game highlights from the Boston Celtics’ 100-80 win over the Philadelphia 76ers in Las Vegas Summer League play. Celtics Videos 0:38 Jayson Tatum on series vs. Heat: “We knew it wasn't gonna be easy” 1:14 Jaylen Brown: Heat “embraced” physicality more than Celtics 1:25 Jaylen Brown reacts to Miami's record-setting night from three 1:32 Joe Mazzulla reacts to Heat putting up 23 3-pointers in Game 2 2:13 HIGHLIGHTS: Heat's record-setting shooting night shocks Celtics