How many teams in the NBA have retired number 23?
Retired Uniform Numbers in the American League
Blue Jays retired numbers
Yankees retire Paul O'Neill's No. 21 jersey
Revisiting Toronto's stance on retired numbers - BlueJaysNation
File:Skydome retired numbers.jpg - Wikimedia Commons
New York Yankees Retired Numbers - Sports Illustrated
Retired numbers: Toronto Blue Jays - by G. Scott Thomas
Twins to retire number for Hall of Fame-elected Kaat - NBC Sports
José Bautista signs 1-day contract to retire as a Toronto Blue Jay
Blue Jays' All-Time Retired Numbers