Garner's Modern American Usage (2009) notes that phrases like obviate the necessity or obviate the need are sometimes considered redundant, but these phrases are not redundancies, for the true sense of obviate the necessity is 'to prevent the necessity (from arising),' hence to make unnecessary..
At the Redskins game against the New York Giants on November 30, 2008, Clinton Portis ran down the field with a flag in the team's colors with the number 21 on it to honor the anniversary of Sean Taylor's death.
Sean Taylor was born in Florida to Pedro Taylor, a policeman, and Donna Junor. He spent his early years growing up with his great-grandmother Aulga Clarke in Homestead, Florida and later moved to his father's home at the age of 11.