The Houston Texans might be facing the perfect opponent to get out of their funk. The Texans have lost three of four since starting 6-2 and now play at Jacksonville, where Houston has won five in a row.

As Houston Texans fans well know, there have been few sure things — at least of the positive variety — during the franchise’s 23-season existence. But when the reeling Texans — who’ve lost four of six after a 5-1 start to the season — visit the Jacksonville Jaguars at noon Sunday,