Tennessee Titans quarterback Marcus Mariota (8) looks to pass during the first half of an NFL football game against the Tampa Bay Buccaneers, Sunday, Sept. 13, 2015, in Tampa, Fla. (AP Photo/Scott Audette)

Marcus Mariota made it look easy, throwing four touchdown passes and outplaying No. 1 overall draft pick Jameis Winston to lead the Tennessee Titans to a 42-14 season-opening victory over the Tampa Bay Buccaneers on Sunday.

The highly anticipated debut for the rookie quarterbacks was one-s