NASHVILLE, Tenn. (AP) - The time has come for the NFL debut of the McCourty brothers' family feud.

Devin and Jason have been competing, pushing and fighting each other since birth in a way only identical twins can.

They will play against each other for the first time - not counting pickup basketball and video games - when Jason's Tennessee Titans host New England in the regular-season opener Sunday.

Let the record show Devin is the oldest by 27 minutes. But Jason played first at Rutgers and beat Devin into the NFL by a year, though Devin got the edge back as a first-round draft pick in 2010.

Jason cheered on his brother as the Patriots won the AFC championship in January, but says this will be their biggest battle yet.