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Jun 25, 2026

Isaiah Stewart trade grades: Pistons get important cap space, Grizzlies get valuable backup big

We got our first and only trade involving a veteran player in the 2026 NBA Draft on Tuesday night. After making it through the entire first round on Tuesday without a known commodity getting dealt, the Grizzlies and Pistons finally made a trade involving a player when Detroit sent backup center Isaiah Stewart to Memphis. The trade, ironically enough, involves the very same second-round picks that Detroit sent Memphis on Tuesday to move up from No. 21 to No. 17 in the first round, according to Jake Fischer.

Isaiah Stewart trade details

  • Grizzlies receive: Isaiah Stewart
  • Pistons receive: 2029 second-round pick (most favorable of Knicks, Pistons, Bucks), 2031 second-round pick (via Mavericks), 2032 second-round pick (via Pistons).

So, what was the rationale behind this deal? Let's grade the trade and find out.

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Memphis Grizzlies: B

The Grizzlies are remaking their roster this offseason, and they're starting that process in the front court. They drafted Cameron Boozer No. 3 overall on Tuesday, and then surprisingly used their second first-round pick, No. 21 after two trades, on another power forward in Karim Lopez. GG Jackson and Santi Aldama are both still on the roster, and of course, recent No. 9 overall pick Zach Edey is a foundational piece in Memphis.

So, why add Stewart? Because front-court depth is important, especially to Memphis. Head coach Tuomas Iisalo prefers to use his players for shorter bursts and get them multiple rests per half so they can play at maximum effort while they're on the floor. Jaren Jackson Jr., who has already been traded to Utah, and Ja Morant, whom the Grizzlies are currently trying to trade, are the only two players on last year's Grizzlies aside from their end-of-season fliers who played more than 28 minutes per game last season. If Memphis is going to sit its best players this much, it needs strong backups.

That is especially important with Edey at center. He played only 11 games last season, and across his 66 total NBA appearances, he has averaged just 22.1 minutes per game. At 7-3 with a listed weight above 300 pounds, the Grizzlies have to be cautious with Edey's workload, which means investing quite a bit in front-court players for the bench.

So, what kind of player are the Grizzlies getting in Stewart? One of the best rim-protecting backups in the NBA. Even at 6-foot-8, Stewart was a defensive force as Detroit's backup center last season. Opponents shot just 49.6% within six feet of the basket with Stewart as their primary defender last season, according to NBA.com. That's the best figure on Detroit's No. 2-ranked defense. The 0.95 points per shot he allowed that the rim ranked in the 93rd percentile among all defenders last season, according to Synergy Sports.

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