San Francisco 49ers offensive tackle Anthony Davis, left, blocks Detroit Lions defensive end Cliff Avril, right, in the first quarter of an NFL football game in Detroit, Sunday, Oct. 16, 2011. The 49ers haven't lost to the Lions in more than 15 years.
San Francisco 49ers offensive tackle Anthony Davis, left, blocks Detroit Lions defensive end Cliff Avril, right, in the first quarter of an NFL football game in Detroit, Sunday, Oct. 16, 2011. The 49ers haven't lost to the Lions in more than 15 years. Rick Osentoski AP
San Francisco 49ers offensive tackle Anthony Davis, left, blocks Detroit Lions defensive end Cliff Avril, right, in the first quarter of an NFL football game in Detroit, Sunday, Oct. 16, 2011. The 49ers haven't lost to the Lions in more than 15 years. Rick Osentoski AP
49ers with Matt Barrows

49ers with Matt Barrows

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49ers lose powerful right hook with Anthony Davis’ retirement

June 08, 2015 07:40 AM