Red Report: Gebbia pushing O'Brien for No. 2 quarterback job

Nebraska true freshman quarterback Tristan Gebbia runs for a touchdown in the second quarter during the Red-White Spring Game on Saturday at Memorial Stadium.Nebraska true freshman quarterback Tristan Gebbia impressed coaches with his work ethic during the spring, closing the season with a strong performance in the Red-White Spring Game.

Although it's been widely assumed that redshirt freshman Patrick O'Brien would be the Huskers' No. 2 quarterback this season, he hasn't locked down that role, NU offensive coordinator Danny Langsdorf said following Thursday's practice at Memorial Stadium.

Asked whether there's a clear-cut No. 2 quarterback based on what he's seen through 10 preseason…