Iowa defensive back Sebastian Castro says the Hawkeyes need to remain focused on what happens on the field and not the atmosphere Saturday night. The 24th ranked Hawkeyes visit number seven Penn State in front of more than 106 thousand fans in the Nittany Lions’ annual white out game.

Castro says as a veteran he does a good job of keeping the game in perspective.

Penn State sophomore quarterback Drew Allar is off to an impressive start, but Castro says defending Penn State begins with the ground game.