BOSTON – (Source: Official Team News Release) – The Boston Celtics acquired guard Josh Richardson from the Dallas Mavericks in exchange for center Moses Brown in a post NBA Draft transaction, among the first of the 2021-22 NBA season.
Richardson played inconsistently when give opportunity by Miami Heat (Getty Images)
A six-year NBA veteran, Richardson, 27, has posted career averages of 12.3 points (42.7% FG, 35.8% 3-PT, 83.2% FT), 3.2 rebounds, 2.8 assists, 1.1 steals, 0.6 blocked shots, and 30.6 minutes in 373 career games (299 starts) with Miami, Philadelphia, and Dallas. He has averaged at least 10.0 points in each of his last five seasons from 2015-16 to 2020-21, including a career-high 16.6 points per game with Miami in 2018-19.
Richardson produced 12.1 points (42.7% FG, 33.0% 3-PT, 91.7% FT), 3.3 rebounds, 2.6 assists, 1.0 steals, and 30.3 minutes in 59 games (56 starts) with the Mavericks last season, marking the fourth time over the last five seasons he has recorded at least 10.0 points and 1.0 steals. The Oklahoma native was one of four NBA players to average 10.0 points and 1.0 steals while shooting at least 91.0% from the free throw line in 2020-21 (Paul/Curry/Irving).
Acquired from Oklahoma City as part of a three-player deal earlier this offseason on June 18, Brown has averaged 7.3 points (54.0% FG), and 7.6 rebounds in 52 career games over two seasons with Portland and Oklahoma City.


Barnes, 31, has spent his entire career in the Red Sox organization since Boston selected him in the first round (No. 19 overall) of the 2011 June Draft. In 362 career major league appearances (two starts), the right-hander is 30-23 with 34 saves, a 3.94 ERA (164 ER/374.1 IP), and 500 strikeouts. His 360 relief outings rank fourth in Red Sox history behind only Bob Stanley (552), Mike Timlin (394), and Jonathan Papelbon (393), while his 362 total appearances rank eighth.
“We can’t wait to bring live hockey action back to Portland this fall, and we know that Mariners fans will be thrilled to watch players from the Bruins organization playing right here in Maine,” said Mariners President Danny Briere.
“I would like to welcome Ime, Nia, Kez, and Massai to the Boston Celtics. Among the many outstanding qualities that Ime brings to the table are his character, humility, and competitiveness. He has a relentless work ethic and a vast array of experiences as a player and coach,” said Celtics President of Basketball Operations Brad Stevens. “He’s a leader that is warm and demanding, and we are so excited that he has chosen to join us in pursuit of Banner 18.”