San Francisco 49ers defensive backs L.J. McCray (31), Keith Reaser (27) and Jaquiski Tartt (29) during an NFL football mini-camp in Santa Clara, Calif., Wednesday, June 10, 2015.
San Francisco 49ers defensive backs L.J. McCray (31), Keith Reaser (27) and Jaquiski Tartt (29) during an NFL football mini-camp in Santa Clara, Calif., Wednesday, June 10, 2015. Jeff Chiu AP
San Francisco 49ers defensive backs L.J. McCray (31), Keith Reaser (27) and Jaquiski Tartt (29) during an NFL football mini-camp in Santa Clara, Calif., Wednesday, June 10, 2015. Jeff Chiu AP
49ers with Matt Barrows

49ers with Matt Barrows

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49ers look ahead: Cornerbacks have potential but are unproven

August 01, 2015 07:48 AM