...were his OTHER numbers.
His main number was 23.
source: http://en.wikipedia.org/wiki/Michael_Jordan
Alex Ovechkin has always worn the #8 during his NHL career.
Mark Grace wore the numbers 28, and 17 during his rookie season with the Chicago Cubs in 1988, and wore the number 17 the rest of his career.
The number 54 has been worn by several players in the history of the San Francisco 49ers. Notably, it was worn by linebacker Patrick Willis during his illustrious career from 2007 to 2014, where he became a key defensive leader and a multiple-time Pro Bowler. Other players like Ray McDonald and Chris Borland have also donned the number, contributing to the team's legacy in different eras.
Jordan has worn only number 11 throughout his entire NHL career.
Jagomir Jagr has worn the number 68 throughout his whole career and is (sadly) now wearing it for philly
Several notable football players have worn the number 27, including LeSean McCoy, who is known for his time with the Philadelphia Eagles and Buffalo Bills, and Reggie Bush, a former standout running back for the New Orleans Saints. Other players include cornerback Darrelle Revis during his early career and safety Eric Berry. The number has also been worn by various players across different teams and positions in the NFL.
Several players have worn number 18 for the St. Louis Cardinals, most notably Hall of Famer Yogi Berra during his brief time with the team in 1965. Other players include pitchers like Bob Gibson and starters such as Matt Morris. The number has also been worn by various other players throughout the team's history, but it is not retired.
Albert Pujols is famously known for wearing the number 5 throughout most of his MLB career, particularly during his time with the St. Louis Cardinals and the Los Angeles Angels. He also wore the number 55 during his brief stint with the Los Angeles Angels. Pujols is widely recognized for his contributions to the game while donning the number 5.
No player has ever worn that number for the Giants during the regular season.
8 and 24
Before Jonathan Toews, who wore number 19 for the Chicago Blackhawks, the jersey was worn by center Michael Handzus during his time with the team from 2013 to 2014. Prior to Handzus, the number was famously worn by the legendary Blackhawks player, Denis Savard, who had an illustrious career with the team. Toews took over the number in the 2007-2008 season and became a key figure in the team's success.
No one has worn number 89 during a regular-season game for the Yankees.