Stewart, 22, averaged 11.3 points and 8.1 rebounds in 50 appearances last season, starting 47. He underwent season-ending surgery on a left shoulder injury in March.
The No. 16 overall pick in the 2020 NBA Draft, Stewart becomes the first player from that class to not sign a maximum rookie-scale extension, Wojnarowski noted. But he also is the first Detroit player to land such a deal since former center Jason Maxiell in 2008.
Stewart compiled 13 double-doubles last season, and such rugged and intense play will likely be appreciated by new coach Monty Williams.
Detroit Pistons F/C Isaiah Stewart has agreed on a four-year, $64 million rookie contract extension, his agent Drew Gross of @RocNationSports tells ESPN. Stewart gets the first non-maximum extension for the 2020 draft class. pic.twitter.com/9a2W7tLj23
— Adrian Wojnarowski (@wojespn) July 11, 2023