Kessler entered the transfer portal following the 2020-21 campaign. The Tigers were one of his original finalists coming out of high school.
The 7-foot-1 center was the third-ranked at his position and 14th-ranked recruit overall on the ESPN 100 for 2020.
Kessler spent his freshman year at North Carolina last season, but playing time was sparse due to a logjam of players in the Tar Heels' frontcourt.
The 19-year-old averaged 4.4 points, 3.2 boards, and 0.9 blocks in 8.8 minutes per game over 29 appearances in 2020-21 and is projected to slide into Auburn's starting five next campaign.