By Marty Graham SAN DIEGO (Reuters) - All eyes will be on San Francisco 49ers quarterback Colin Kaepernick during the performance of the U.S. national anthem at a Thursday night football game to see if he continues to sit in protest of racial injustice in the United States. Kaepernick, 28, has drawn both strong support and fierce criticism for refusing to stand during "The Star Spangled Banner" before National Football League preseason games this year. Kaepernick, a former starter who led San Francisco to the 2013 Super Bowl but has since been demoted to backup, has said he would not show pride in a flag for a country that oppresses people of color, citing police brutality.
