Celtics and guard Abdel Nader agree to 4-year, $6 million deal

The Boston Celtics and 2016 second-round selection Abdel Nader have agreed in principle to a four-year contract worth $6 million, according to league sources.

Nader, 23, was the No. 58 overall selection in last year’s draft and spent the past season with Boston’s NBA G League affiliate in Maine.

He was the league’s Rookie of the Year, averaging 21.3 points, 6.2 rebounds and 3.9 assists.