Raiders rookie quarterback Derek Carr entered Friday's preseason opener against the Vikings in the second quarter with the second-team offense.

Carr played until the third quarter before being pulled for third-stringer Matt McGloin. He showed some struggles in the opening drive and was picked off by Kurt Coleman. He completed 10 of 16 pass attempts for 74 yards, with one interception and no touchdowns. He is expected to open the season as the backup quarterback behind Matt Schaub.

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