The late Wilt Chamberlain became the first player
On Dec. 29, 19991999 The late Wilt Chamberlain became the first player to have his number retired by three teams when the Golden State Warriors retired his #13 jersey at halftime of their game against the Philadelphia 76ers. The No. 13 jersey was presented to Barbara Lewis and Yvonne Chamberlain, Wilt’s sisters, and Oliver Chamberlain, his brother. Chamberlain’s number had already been retired by the Philadelphia 76ers, where he was part of the 1967 NBA championship team, and the Los Angeles Lakers, where he was part of the 1972 title team. Chamberlain spent six years with the Warriors organization, averaging 41.5 points and 25.1 rebounds in 429 games.
Sources: