The first thing to note is that Michael Jordan wore three numbers throughout his NBA career, namely: No. 23, No. 45 and No. 12.

Generally, players will have their favorite numbers when they enter the league. However, due to reasons such as retired jerseys or players who have already been selected, many rookies have to re-select their numbers. Once selected, there is no need for special circumstances. Will be replaced easily. Jordan's original number was No. 23, but No. 23 was not his favorite number.

In fact, Jordan's favorite sport when he was a child was not basketball but baseball. When he first played baseball, his jersey number was No. 45, so in his mind, No. 45 is part of his life. But then Jordan started his basketball career, but after being selected for the school team, Jordan's brother Larry Jordan had already chosen No. 45, so he had to give up No. 45 and choose No. 23 because he hoped that he could be half as good as his brother. Excellent, 45 is usually 22.5, which is rounded to 23, which is No. 23, so Jordan chose No. 23 from high school to college and then to the NBA.

After Jordan retired in 1993, the Bulls also retired his No. 23 jersey. After retiring, he entered the baseball circle and chose jersey No. 45. When he returned to the NBA in 1995, he chose to continue wearing jersey No. 45, firstly to commemorate his father, and secondly because the jersey had been retired. But in the Eastern Conference semifinals that year, Magic players once trash-talked Jordan: Jordan No. 45 (ability) is no longer Jordan No. 23! This made the Flyers furious, and he did not hesitate to pay the fine and wear No. 23 again. Jordan's No. 45 jersey was thus passed away.

In addition, Jordan briefly wore the No. 12 jersey, and the reason was somewhat funny: before the game between the Bulls and the Magic in 1990, someone sneaked into the Bulls locker room and stole Jordan's No. 23 jersey and sneakers. According to reports, Said it was a gift for my girlfriend. The embarrassing thing is that the Bulls did not prepare a spare jersey for Jordan at the time. In desperation, the Flyers could only temporarily wear a No. 12 jersey with no name on the back. Since this incident, the Bulls have developed the habit of preparing alternate jerseys for Jordan.