July 20, 2020 3:21 am Reintroducing the Celtics: Marcus Smart In the latest in our “Countdown to Celtics” videos, NBC Sports Boston takes a look back at players’ year so far. Here is a look at Marcus Smart, who is having a career-year. Celtics Videos 0:38 Al Horford not happy with Bam Adebayo after Tatum hit 1:03 Joe Mazzulla praises team for stepping up after losing Porzingis 2:11 Eddie House: Focus of Jayson Tatum this year is impressive 4:59 HIGHLIGHTS: Derrick White's career night puts Celtics up 3-1 over Heat 1:34 House: Derrick White ‘main reason' Celtics won Game 4 vs. Heat