Smart was named to the All-Defensive first team for the 2018-19, 2019-20 and 2021-22 seasons. He was a key member of the Boston Celtics during his first nine NBA seasons, and with his help, they reached the Eastern Conference Finals five times in seven seasons and got to the NBA Finals in 2022.

Veteran point guard Marcus Smart "has been working hard on his body this summer," according to NBA insider Marc Stein.

On Saturday, July 19, ESPN's Shams Charania reported that former Boston Celtics fan favorite, Marcus Smart, had agreed to a contract buyout with the Washington Wizards. Charania also noted that Smart, 31, plans to sign a two-year $11 million contract with the Los Angeles Lakers, meaning he will join his former team's most bitter rivals.