Cousins, 27, is 6-foot-4 and was selected by the Kings in the second round (No. 59 overall) of the 2016 NBA Draft.
He has spent time with the Reno Bighorns and Salt Lake City Stars, as well as in Israel and Greece, and most recently Estonia.
Cousins was a backcourt-mate of Pacers shooting guard Buddy Hield while with the Sooners, from 2012-16.
The Maine Celtics are acquiring free agent guard Isaiah Cousins, sources tell @HoopsRumors. Cousins most recently played in Estonia. He was the No. 59 pick to Sacramento in the 2016 NBA Draft.
— JD Shaw (@JShawNBA) February 28, 2022