San Francisco 49ers offensive tackle Anthony Davis (76) and offensive tackle Alex Boone (75) block against the St. Louis Rams during the first quarter of an NFL football game in Santa Clara, Calif., Sunday, Nov. 2, 2014.
San Francisco 49ers offensive tackle Anthony Davis (76) and offensive tackle Alex Boone (75) block against the St. Louis Rams during the first quarter of an NFL football game in Santa Clara, Calif., Sunday, Nov. 2, 2014. Marcio Jose Sanchez AP
San Francisco 49ers offensive tackle Anthony Davis (76) and offensive tackle Alex Boone (75) block against the St. Louis Rams during the first quarter of an NFL football game in Santa Clara, Calif., Sunday, Nov. 2, 2014. Marcio Jose Sanchez AP