The Houston Texans have won the AFC South three times in coach Bill O'Brien's five seasons, and they have led or shared the divisional lead all but three weeks this season.
Adding a fourth title to that list means going through the franchise the Texans replaced in Houston.
The Tennessee Titans last won the AFC South back in 2008 and haven't swept the Houston Texans since 2007. But the Titans and second-year coach Mike Vrabel, who got his NFL coaching start in Houston working with linebackers for O'Brien in 2014, has won four straight and six of seven since quarterback Marcus Mariota was benched for Ryan Tannehill.