Ryan Tannehill insisted the Tennessee Titans are "just getting started" after they clinched the AFC South title and moved into the one seed in the conference.

Tennessee punched their ticket to the postseason as division champions with a 34-3 rout of the Miami Dolphins, who were eliminated from playoff contention.

With the Kansas City Chiefs losing to the Cincinnati Bengals, the Titans' victory saw them jump to the top of the AFC, meaning they will clinch a first-round bye and homefield advantage throughout the playoffs with a Week 18 win over the lowly Houston Texans.

While the Titans donned AFC South champion t-shirts in the locker room after the game, Tannehill conceded he was struggling to find a balance between celebrating that achievement and focusing on what they still have to do.

"That was a battle I was having in [the locker room] myself," the Titans quarterback said. "I'm thinking: Try to enjoy the moment and celebrate, but I'm going around telling the guys that we're just getting started.

"It's a big step and enjoy it, but we're just getting started. We've got a long way to go and that was kind of my message going around to the guys.

"Definitely try to enjoy the moment and celebrate today for what it is, but just knowing in the back of our minds that our ultimate goals aren't done yet.

"We've still got a long way to go."

Tannehill's top target, wide receiver A.J. Brown, added: "We had to worry about ourselves and we had to win today.

"We are not really worried about anyone else no matter what cards we were dealt. We had to win today, and we got the win today.

"Next week, it's going to be winning next week, against Houston. We know that right now, it's playoff football. And we are already trying to get in form, because it gets tougher."