No one currently wears that number for the 2014 Dallas Cowboys.
One Wyoming Cavalry is a professional indoor football team of the Indoor Football League and is based in Casper, Wyoming.Another Wyoming football team, the Cheyenne Warriors, is a professional indoor football team which is currently a member of the Indoor Football League and is based in Cheyenne, Wyoming.
The Denver Broncos are an American football team, currently one of 32 franchises in the NFL.
No one currently does
Do you mean soccer? 11 in one team (10 on field and a goalkeeper)
11 in one team total 22