Though Locker (thumb) practiced Wednesday, Zach Mettenberger is in line to start for the Titans in Sunday's game against the Texans, The Tennessean reports. Locker seemed likely to start Sunday as long as he made it through practice this week without setback, but it appears the Titans want to give Mettenberger a chance to show what he can do. The Titans have not officially announced who will get the start Sunday, but expect them to provide further details sometime soon.