It's because of Sean Taylor being killed a few weeks ago his number was 21 it is in his memory that they wear that number on their helmets.
Because Sean Taylor was shot and killed a few weeks ago and that is why all the teams have his number 21 on their helmets out of respect for him.
In honor of Washington Redskins Safety Sean Taylor, who was shot and killed this month in a botched robbery.
The Washington Redskins wear the number 21 on their jersey's because that was the number of a team mate (Sean Taylor) who got shot in his own house by someone who broke in.
That is in honor of Sean Taylor of the Washington Redskins who was killed in a home invasion robbery in November, 2007.
It is in honor of Washington Redskins player Sean Taylor. He died in the 2007 season. He was 24 years old and shot in his Miami home and died at the hospital a few hours later.
Deon Sanders wore it, but currently it is Mike Jenkins.
Pac Man Jones wore # 21 in 2008.
Joseph Randle is number 21 on the Dallas Cowboys.
Sanders wore No. 21 during his years with the Atlanta Falcons (1989-1993), the San Francisco 49ers (1994), the Dallas Cowboys (1995-1999) and the Washington Redskins (2000). He wore No. 37 during his two seasons with the Baltimore Ravens (2004-2005).
Mike Jenkins (CB) currently wears number 21 for the Dallas Cowboys.
On October 17, 2010, Favre and the Minnesota Vikings defeated the Dallas Cowboys 24-21 in Minnesota.
The New England vs Dallas gamelog: Oct 24, 1971 L New England Patriots @ Dallas Cowboys 21-44 Nov 16, 1975 L New England Patriots vs Dallas Cowboys 31-34 Dec 3, 1978 L New England Patriots @ Dallas Cowboys 10-17 Sep 21, 1981 L New England Patriots vs Dallas Cowboys 21-35 Nov 22, 1984 L New England Patriots @ Dallas Cowboys 17-20 Nov 15, 1987 L New England Patriots vs Dallas Cowboys 17-23 Dec 15, 1996 L New England Patriots @ Dallas Cowboys 6-12 Dec 5, 1999 W New England Patriots vs Dallas Cowboys 13-6 Nov 16, 2003 W New England Patriots vs Dallas Cowboys 12-0 Oct 14, 2007 W New England Patriots @ Dallas Cowboys 48-27 Oct 16, 2011 W New England Patriots vs Dallas Cowboys 20-16 Oct 11, 2015 W New England Patriots @ Dallas Cowboys 30-6
The Cowboys No. 2 quarterback will turn 39 on September 21, 2011.
Yes - they defeated the Cowboys 21-17 in the 2007 playoffs.
The Dallas Cowboys lost three Super Bowls at the Orange Bowl, Miami Fl.Super Bowl V, Baltimore Colts 16 Dallas Cowboys 13Super Bowl X, Pittsburgh Steelers 21 Dallas Cowboys 17Super Bowl XIII, Pittsburgh Steelers 35 Dallas Cowboys 31
The Dallas Cowboys defeated the Philadelphia Eagles, 14-13, at Lincoln Financial Field.