Los Angeles Clippers (2019–2025) Mann was drafted with the 48th pick of the
2019 NBA draft by the
Los Angeles Clippers. He played for the Clippers in the 2019
NBA Summer League. On July 9, 2019, the Clippers announced that they had signed Mann. On October 24, 2019, Mann made his NBA debut, coming off the bench in a 141–122 win over the
Golden State Warriors with a rebound. On March 18, 2020, the Clippers announced that Mann had undergone surgery to repair a ligament in his right hand. On August 14, 2020, in a game against the
Oklahoma City Thunder, Mann recorded a then-career-high 25 points, 14 rebounds and nine assists in 42 minutes. During the 2021 Western Conference Semifinals, with
Kawhi Leonard being injured, Mann was put in the starting lineup. In game 6, Mann dropped a career-high 39 points on 7-of-10 shooting from three-point range in a 131–119 victory, sparking a 25-point comeback and leading the Clippers to the
Western Conference Finals for the first time in franchise history. On October 12, 2021, Mann signed a two-year, $22 million contract extension. On January 15, 2023, Mann scored a season-high 31 points during a 121–100 win over the
Houston Rockets. On September 27, 2024, Mann agreed to a three-year, $47 million contract extension with the Clippers.
Atlanta Hawks (2025) On February 6, 2025, Mann and
Bones Hyland were traded to the
Atlanta Hawks in exchange for guard
Bogdan Bogdanović, and three second-round draft picks. On February 26, 2025, Mann recorded 13 points, 4 rebounds and 4 assists while coming off the bench in a 131–109 loss against the
Miami Heat. On March 10, 2025, Mann would have of his best games with the Hawks in which he recorded a team-high 19 points along with 6 rebounds and 4 assists in 33 minutes of action off the bench in a 132–123 win against the
Philadelphia 76ers. On April 13, 2025, during the final game of the regular season, Mann was put in the
starting lineup for the first time as a member of the Hawks in which he tied his team-high 19 points, while recording 4 assists and 3 rebounds in a 117–105 win against the
Orlando Magic.
Brooklyn Nets (2025–present) On July 7, 2025, Mann and the draft rights to
Drake Powell (the 22nd pick in the
2025 NBA draft) were traded to the
Brooklyn Nets in a three-team trade that sent the
Boston Celtics'
Kristaps Porziņģis and a second-round pick to the Hawks, and
Georges Niang and a second-round pick to the Celtics. ==Executive career==