Phillips was selected with the 35th overall pick in the
2023 NBA draft by the
Boston Celtics, and was soon traded to the
Chicago Bulls via the
Washington Wizards. Phillips made 40 appearances for the Bulls during his rookie campaign, recording averages of 2.2 points, 0.9 rebounds, and 0.3 assists. Phillips played in 79 contests (including five starts) for Chicago in the
2024–25 NBA season, averaging 4.6 points, 2.1 rebounds, and 0.5 assists. He made 35 appearances (two starts) for Chicago during the
2025–26 season, logging averages of 2.8 points, 1.3 rebounds, and 0.2 assists. On February 4, 2026, Philips and
Ayo Dosunmu were traded to the
Minnesota Timberwolves in exchange for
Rob Dillingham,
Leonard Miller, and four second-round picks. ==Career statistics==