The Tennessee Titans watched their grip on the AFC South slip away Sunday in the desert, falling 12-7 to the Arizona Cardinals. Marcus Mariota took the blame for an offense that totaled a measly 204 yards. The Titans QB also tossed two interceptions and completed just 16 of 31 passes. "Frustration is an understatement," Mariota said, via the team's official website. "The defense played lights out, special teams did their job and I have been hurting our team and I have to find ways to get better and improve." With the ground game stuck in the mud against a stout Cardinals run-D, Mariota couldn't connect with his receivers. The Titans managed just 62 yards and three first downs in the second half.