Pistons, Isaiah Stewart agrees to 4-year, $64 million extension

Sources said Pistons general manager Troy Weaver and Gross completed negotiations for the summer league deal in Las Vegas. This is the Pistons’ first rookie stretch since owner Tom Gores purchased the franchise in 2011 – and the organization’s first since Jason Maxiell in 2008.

Stewart, 22, has emerged as an integral part of the Pistons’ rebuilding. Stewart averaged 11.3 points and 8.1 rebounds, starting 47 of 50 games before suffering a season-ending left shoulder injury in early March. Stewart had 13 double-doubles last season, according to ESPN Stats & Information Research.

The Pistons re-signed center Andre Drummond to a five-year, $127 million deal in 2016, but that was as a restricted free agent, not a rookie extension.

Stewart is the first non-max contract extension in the class of 2020. To date, Minnesota’s Anthony Edwards, Charlotte LaMelo Ball, Indiana’s Tyrese Haliburton and Indiana’s Desmond Payne have all agreed to max extensions.

The Pistons drafted Stewart No. 16 overall out of Washington, where he played for Huskies head coach Mike Hopkins.