Missi was born on 14 May 2004.[1] He was born in Belgium but grew up in Yaoundé, Cameroon.[2][3] He moved to the United States in 2021 and began attending West Nottingham Academy in Maryland.[4] He later transferred to Prolific Prep in Napa, California, and averaged 9.3 points, 8.7 rebounds and 1.3 blocks per game.[5] A five-star recruit, he was highly recruited and was ranked by ESPN as the second-best player in California, the 13th-best player nationally and third-best center.[6][7]
Missi played at the Nike Hoop Summit in 2023 and won The Grind Session World Championship with Prolific Prep, earning a place at the GEICO High School Nationals.[8] He also played in the Nike Elite Youth Basketball League (EYBL) and averaged 12.7 points, 9.9 rebounds and 2.8 blocks per game with the PSA Cardinals.[9] He committed to playing college basketball for the Baylor Bears and reclassified to be able to join them for the 2023–24 season.[10]
College career
Missi impressed early in the 2023–24 Baylor season.[11] Following his freshman season, he declared for the 2024 NBA Draft and received a green room invite.[12]
On October 23, Missi made his NBA debut, putting up 12 points, seven rebounds, three blocks, one assist, and one steal in a 123–111 win over the Chicago Bulls.[15]