Jackson is renowned for his defensive dominance, particularly his exceptional rim protection; he has led the league in blocks per game for two consecutive seasons.

Park Tudor School Sources: Jackson was recruited by a number of notable programs, including Michigan State, Notre Dame, Butler, Indiana, Purdue, Maryland, and several more.

[12] Jackson made his collegiate debut on November 10, 2017, recording 13 points and a season-high 13 rebounds in a blowout 98–66 win over North Florida.

[16] On December 13, 2019, Jackson scored a career-high 43 points, including 9 three-pointers (which tied a franchise record set by Mike Miller in 2007) in a 127–114 loss to the Milwaukee Bucks.

[17] On January 30, 2020, Jackson was suspended for one game without pay for leaving the bench during an altercation between the Grizzlies and the New York Knicks.

[19] On August 4, 2020, Jackson suffered a torn meniscus in his left knee in a 99–109 loss to the New Orleans Pelicans hosted in the Bubble and was expected to miss the remainder of the 2019–20 season.

[21] On April 21, 2021, Jackson made his return, putting up 15 points, 8 rebounds, and 4 blocks in a loss to the Los Angeles Clippers.

[26] On April 16, during Game 1 of the first round of the playoffs, Jackson logged 12 points and seven blocks in a 130–117 loss to the Minnesota Timberwolves.

[32] On June 30, 2022, Jackson underwent surgery to repair a stress fracture in his right foot and was ruled out for four-to-six months.

[34] On December 12, Jackson recorded a career-high eight blocks, alongside 15 points, seven rebounds and two assists, in a 128–103 win over the Atlanta Hawks.

[35] On January 5, 2023, he scored a season-high 31 points, alongside ten rebounds and three blocks, in a 123–115 win over the Orlando Magic.

[37] On April 5, Jackson scored a season-high 40 points, along with nine rebounds, three assists and four blocks in a 138–131 overtime loss against the New Orleans Pelicans.

[39] On April 16, in the opening game of the playoffs Jackson scored a game-high 31 points on 13-of-21 shooting from the field in a 128–112 loss against the Los Angeles Lakers.