PHOENIX -- The last several weeks have been relatively quiet for the Phoenix Suns, as general manager Brian Gregory and head coach Jordan Ott continue to map out how the second season with each in their respective posts will go. Some major news finally broke on Wednesday in the midst of reported negotiations with impending free agents Jordan Goodwin and Collin Gillespie - this development surrounds a major career decision that was recently made by franchise player Devin Booker ahead of his 12th season in the league.Apr 22, 2026; Oklahoma City, Oklahoma, USA; Phoenix Suns guard Devin Booker (1) reacts after receiving a technical after a play against the Oklahoma City Thunder in the second half during game two of the first round of the 2026 NBA Playoffs at Paycom Center. Mandatory Credit: Alonzo Adams-Imagn Images | Alonzo Adams-Imagn ImagesRead more about the decision and why it holds weight heading into the 2026-27 season below.Booker Set to Change Jersey NumberESPN insider Shams Charania confirmed news that broke early Wednesday morning that Booker would be making a permanent change to his jersey number - officially moving from number 1 to 15."Phoenix Suns star Devin Booker is changing his jersey from No. 1 to No. 15, honoring his USA Basketball uniform and the college number of his father, Melvin, per ESPN sources."Apr 17, 2026; Phoenix, Arizona, USA; Phoenix Suns guard Devin Booker (1) against the Golden State Warriors during the first half in the play-in rounds of the 2026 NBA Playoffs at Mortgage Matchup Center. Mandatory Credit: Mark J. Rebilas-Imagn Images | Mark J. Rebilas-Imagn ImagesBooker wore no. 1 for much of his basketball career, including his lone season of college at the University of Kentucky and for his first 11 seasons of his NBA tenure. Booker not only became the Suns' all-time leading scorer while wearing the number, but also took the franchise to the NBA Finals in 2021, earned multiple All-NBA selections, and turned into a player that rivals Larry Fitzgerald as far as the level of admiration he receives from local fans. Now, it appears as if a new era is dawning - follow why that is significant below.Apr 7, 2026; Phoenix, Arizona, USA; Phoenix Suns guard Devin Booker (1) drives to the basket against Houston Rockets forward Kevin Durant (7) in the second half at Mortgage Matchup Center. Mandatory Credit: Mark J. Rebilas-Imagn Images