Why doesn't basketball have a jersey number 1.2.3?

This is because the FIBA Technical Committee stipulates that teams must use the number 4- 15. Why does it have to be so stipulated?

In the game, when a player fouls, the referee should indicate the number of the fouled player to the record table with his hand. If the fouled player is to be sentenced to a free throw, he should stretch out two fingers to point to the free throw line. When a player makes a free throw or shoots, the referee will also extend one finger, two fingers or three fingers to the record table to indicate the score; When a player fouls for 3 seconds, the referee should also point three fingers to the penalty area.

In order to avoid confusion between player numbers and scores, make the record table more clear, and make the game go smoothly, the rules stipulate that players participating in basketball games are not allowed to wear jerseys with numbers 1, 2, 3, or too many jerseys. Because the number is too large, it is difficult for the referee to gesture at the recording table.

However, the NBA is much more relaxed in this respect, and the specified number range is 1-55. That's why there are Michael Jordan on the 23rd, Admiral Robinson on the 50th, 1 Penny Hardaway, and McGrady and Iverson on the 3rd. If a player wants to use a special number, he needs the approval of NBA headquarters. For example, parrish, the "old chief" of Bull, used the number 00, while Rodman used the numbers 9 1 and 73.