Jaren Jackson Jr. is the son of an NBA champion and of the woman who negotiated the WNBA's landmark labor deal. He's a former Defensive Player of the Year who spent eight seasons as the steady one on a Memphis team that was rarely steady. Then the Grizzlies traded him to Utah, a routine physical turned up a growth in his knee, and he played 72 minutes for the Jazz before his season ended. This is his first real season here, and how it goes depends heavily on him.
A champion's kid and a union boss's son
Jackson was born in Plainfield, N.J., in September 1999, a few months after his father won the 1999 title with the Spurs, per Heavy. Jaren Jackson Sr. is a New Orleans native who played for John Thompson at Georgetown and had a 13-year pro career, per his UIW coaching bio. He later coached in the G League and at La Lumiere, and he's now the associate head coach at Incarnate Word in San Antonio.
His mother, Terri Carmichael Jackson, is a Georgetown Law graduate who worked in college athletics and spent four years at the NCAA in Indianapolis. She joined the WNBPA in 2016 and became its executive director. Sports Illustrated credited her with the 2020 collective bargaining agreement, which brought a big pay raise and paid maternity leave. Her son, in that story:
"My mom always would come up with these long-term ideas on how she wanted to better women in sports."
Jackson Sr. made the title a teaching point. "He can take that as a motivation for him, to maybe one day get one for himself," he told Yahoo Sports after the 2018 draft, via Fox San Antonio.
Park Tudor, La Lumiere, and one year at Michigan State
The family settled in Indianapolis, and Jackson won two Class 2A state titles at Park Tudor. He scored 11 points in the 2015 final, per the IHSAA. For his senior year he moved to La Lumiere, a prep school in La Porte, Ind., where his father was an assistant coach. La Lumiere went 28-1 and won the 2017 Dick's Nationals, and Jackson was a McDonald's All-American, per Ballislife.
He picked Michigan State over Notre Dame, Georgetown, Maryland, and Purdue on his 17th birthday. Tom Izzo had visited him right after his Hall of Fame induction. "It was crazy he came to visit me right after I was watching him on television from the Hall of Fame," Jackson told CBS Detroit.
In his one season in East Lansing he blocked 106 shots, a school record, and was named both Big Ten Defensive Player of the Year and Freshman of the Year. The only other player to win both was Greg Oden, per the AP via Fox 2 Detroit. He also made nearly 40% of his threes, which is why scouts saw a modern big man. Memphis took him No. 4 in 2018.
Memphis: blocks, injuries, and Ja
Jackson made the All-Rookie team, then lost much of his first three seasons to injuries. He tore the meniscus in his left knee in the 2020 bubble (ESPN) and played just 11 games the next season. His first playoff series, in 2021, was a five-game loss to the Jazz.
Then the Grizzlies took off with Ja Morant. Jackson led the league in blocks in 2021-22 (2.3 per game) and again in 2022-23 (3.0), even after surgery for a stress fracture in his right foot (ESPN) cost him the start of that season. In April 2023 he won Defensive Player of the Year with 56 of 100 first-place votes, the second-youngest winner ever and the first to receive the Hakeem Olajuwon Trophy, per ESPN. He made his first All-Star team that season and his second in 2025.
He also became the guy who stayed on the floor. Morant was suspended twice over gun videos and missed most of 2023-24 with a shoulder injury. Jackson started all 66 games he played that season and averaged a career-high 22.5 points. Going into that season, he told ESPN: "Obviously, we know that not having Ja is a real big hole to fill."
Off the court, his giving runs under the name "Much Required," from his grandmother's saying, "to whom much is given, much is required." On Giving Tuesday in 2021 he put in $150,000 of his own money and raised nearly $200,000 in a day for five Memphis youth groups, per the NBA. Back in 2019 he hosted an all-girls basketball symposium in Memphis, and wrote about it for The Players' Tribune.
The trade
Memphis signed him to a five-year, $240 million renegotiation and extension in June 2025, per ESPN. He had turf toe surgery a few days later (ESPN). The Grizzlies were 19-29 by early February, and they decided to rebuild.
On Feb. 3, 2026, Utah got Jackson, John Konchar, Jock Landale, and Vince Williams Jr. for Walter Clayton Jr., Kyle Anderson, Taylor Hendricks, Georges Niang, and three first-round picks, per NBA.com. The Salt Lake Tribune listed the picks: the best of Cleveland's, Minnesota's, and Utah's 2027 firsts, the Lakers' 2027 first (top-4 protected), and Phoenix's unprotected 2031 first. His contract pays about $50 million a year, with a player option for 2029-30. Andy Larsen's summary of the reason: the Jazz needed "more defense, badly" (Tribune).
Jackson said goodbye in a Players' Tribune essay titled "Memphis, It Was Realer Than Real." He wrote that Morant's advice was "You been a pro for eight years, just continue to be that," and he signed off to the city: "You embraced a young kid from Indiana, and for that I'll always be grateful."
Three games, a fine, and a tumor
The physical after the trade found a growth in his left knee, and the Jazz kept him on a minutes limit. He scored 22, 22, and 23 points in his three games, all in 25 minutes or less, per ESPN's game log. The 23 came in his home debut, a 121-93 win over Sacramento, and afterward he said, "My goal is to come here and win a championship here," per ESPN.
Those games also got the Jazz in trouble. Jackson and Lauri Markkanen sat the fourth quarters at Orlando and Miami, and the NBA fined Utah $500,000. Adam Silver said, "Overt behavior like this that prioritizes draft position over winning undermines the foundation of NBA competition," per ESPN. The league acknowledged that Jackson's minutes were limited because of the knee.
On Feb. 17, Dr. Travis Maak removed what the team called a localized pigmented villonodular synovitis (PVNS) growth, a benign tumor, from his left knee, per NBA.com. The Deseret News noted that PVNS can come back after removal, but he was expected to recover fully. He was doing on-court work by late March (Tribune) but didn't play again.
Finland, media day, and the whistle
In August he flew to Helsinki with Will Hardy, Keyonte George, and owner Ryan Smith to spend a few days with Markkanen. They watched Finland beat Iceland 93-78 in Espoo, per Eurohoops. Hardy: "the human element, the relationships and building connections have been the most important things." The trip also produced a video of Hardy and George convincing Jackson that a room was soundproof and getting him to scream in it (Bleacher Report).
At media day the Deseret News called him fully healthy. He described Markkanen as "a 7-1 wing who can shoot, so I feel like he complements anybody," and he praised the young guys' work ethic, per SLC Dunk: "These guys work! That's what stands out for sure — they work all the time."
The preseason has been good, with one problem. He had 11 points in 18 minutes in the opener against Denver in Boulder, and Hardy said of him and Markkanen, "When they play together, it's a matchup problem" (Jazz). Then came four fouls in 15:41 in the home loss to Denver. Against San Antonio he scored 13 points on 6-of-8 shooting in the first half, including a dunk right on Luke Kornet, and also picked up five fouls before halftime.
This isn't new. The Tribune noted at the trade that he led the league in personal fouls, and he averaged 3.7 a game last season (179 in 48 games, per ESPN's game log). Sarah Todd of the Deseret News remembered a 2022 game in which Jackson pulled his Memphis teammates away from a referee and later told her that arguing calls was wasted energy. That calm about the whistle is good. Our take: what Utah needs now is fewer whistles in the first place.
Role
Jackson starts at the four next to Markkanen. While Jusuf Nurkić is out, he's also the center in Hardy's small "Death Lineup" with Markkanen, George, Darryn Peterson, and Ace Bailey. He's the Jazz's best rim protector and the voice of the defense. He can also stretch the floor (35.7% from three last season) and score in the post, which is what Utah needs from a big next to Markkanen.
The concerns are fouls and rebounding. The Spurs got 13 offensive boards in the preseason finale, and he's never been a big rebounder (5.7 per game last season).
2026-27 prediction
Our take: health first, fouls second. If he plays 65-plus games and averages fewer than 3.5 fouls, he's back near 18 points and 1.5 to 2 blocks, and Utah's defense climbs out of the bottom five. He'll start the season playing more center than anyone expected, and how Utah's defense holds up will depend on him staying out of foul trouble.
Sources: Heavy, UIW Athletics, Sports Illustrated, Fox San Antonio, IHSAA, Ballislife, CBS Detroit, Fox 2 Detroit, ESPN, NBA, The Players' Tribune, NBA.com, The Salt Lake Tribune, Deseret News, Eurohoops, Bleacher Report, SLC Dunk, and Utah Jazz.