Andrew Whitworth says Matthew Stafford is frustrated by his back, but he doesn't think there's any concern about the QB's status for Week 1.

Despite any ailments that Matthew Stafford is going through, there is an expectation among the Los Angeles Rams that Stafford will suit up Week 1 against the Houston Texans. When NFL’s ESPN’s Ian Rapoport reported that Stafford was dealing with an aggravated disc,