For Sean Taylor of the Washington Redskins:
"The tributes to Sean Taylor continue into the NFL playoffs."
http://www.redskins.com/news/newsDetail.jsp?id=34022
Because Washington Redskins Safety Sean Taylor was shot and killed and his number was 21. So, every team in the NFL wears that on the back of their helmets.
The '21' is in honor of former Redskins safety Sean Taylor who was murdered in his house a few days ago.
the death of Sean Taylor on the redskins every team in the NFL has his number on them
That honors Redskins safety Sean Taylor who was murdered in a botched robbery attempt in November, 2007.
Riders must wear helmets until they are age 21.
Several NFL teams are honoring the late Sean Taylor, #21 on the Washington Redskins, after he was killed in a botched burglary at his home in Miami.
It isn't 12, it is 21 currently-and that is for Sean Taylor the Redskins Safety that was killed earlier this year.
all motorcyclists wear helmets, squids don't wear helmets.
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.
All NFL teams wore #21 on their helmets in Week 13 of 2007, to honor Sean Taylor, the Redskins star who was killed. Some, but not all, NFL teams continued wearing the number for the rest of the season.
In 2007 Sean Taylor(Washington Redskins) was murdered and teams put a black circle with a white number 21 in it in tribute to him.
Sikhs do not have to wear crash helmets as part of there religion.