The Texans defense suffocated Tennessee on Sunday afternoon.
In the 34-6 victory at Nashville, Houston allowed just 30 rushing yards on 11 carries.
They held the Titans scoreless until the 1:31 mark in the fourth quarter.
It was a dominating effort, and it started with a Quintin Demps scoop-and-score defensive touchdown in the first quarter.
"It was really important for us to come out here and start fast," head coach Bill O'Brien said of the safety's 33-yard return. "That was huge for our team."
"That really got us going," O'Brien said.
On the day, Tennessee was 4-of-16 on third down. The Texans came up with four takeaways, three of which were on the defensive end. The other came on special teams. Defensive end J.J. Watt caused one, when he strip-sacked Zach Mettenberger. It was third-and-goal at the one for Tennessee, but Watt dropped Mettenberger at the 9-yard line.
"We didn't want them to get into the end zone," Watt said. "Your defense is holding on to a shutout, and we've been playing great all day. You don't want to let them in. That's my job."
Watt also had a tackle for loss and a batted pass in the triumph.
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Check out snapshots of the action from the Texans at Titans Week 16 matchup.
Houston Texans free safety Quintin Demps (27) gets past Tennessee Titans guard Quinton Spain (60) as Demps runs for a touchdown after recovering a fumble and returning it 33 yards in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. (AP Photo/James Kenney)
Houston Texans free safety Quintin Demps (27) recovers a fumble by Tennessee Titans running back Antonio Andrews after Andrews was hit by Texans defensive back Kareem Jackson (25) in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. Demps returned the recovery 33 yards for a touchdown. (AP Photo/Weston Kenney)
Houston Texans free safety Quintin Demps scores a touchdown against the Tennessee Titans after recovering a fumble and returning it 33 yards in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. (AP Photo/James Kenney)
Houston Texans free safety Quintin Demps (27) gets past Tennessee Titans guard Quinton Spain (60) as Demps returns a fumble recovery 33 yards for a touchdown in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. At left is Texans defensive end Jared Crick (93). (AP Photo/Mark Zaleski)
Tennessee Titans quarterback Zach Mettenberger (7) passes as Houston Texans outside linebacker Jadeveon Clowney rushes in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. (AP Photo/James Kenney)
Houston Texans quarterback Brandon Weeden passes against the Tennessee Titans in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. (AP Photo/Mark Zaleski)
Houston Texans free safety Quintin Demps, center, celebrates with Andre Hal (29) and Duane Brown (76) after Demps returned a fumble recovery 33 yards for a touchdown against the Tennessee Titans in the first half of an NFL football game Sunday, Dec. 27, 2015, in Nashville, Tenn. (AP Photo/Mark Zaleski)
