Videos: Alex Smith, Jamaal Charles, Donnie Avery and Sean Smith talk about Sunday’s opener

Chiefs quarterback Alex Smith talks about wide receiver Donnie Avery and and his new contract.

KC running back Jamaal Charles says he is excited about first game of the season.

Chiefs wide receiver Donnie Avery talks about his bigger role with the absence Dwayne Bowe on Sunday.

KC Chiefs cornerback Sean Smith discusses the Tennessee Titans and Eric Berry.