Tuesday marked another day on the sidelines for Los Angeles Rams quarterback Matthew Stafford, whose back problem continued to keep him out of duty at training camp. Stafford, 37, was expected to participate in his first training camp practice on Monday but came out in street clothes.

Last month, Sean McVay said he didn't have "any reason to be concerned" about Matthew Stafford. That's no longer the case, unfortunately.

Los Angeles Rams QB Matthew Stafford’s back injury kept the 37-year-old out of practice Monday, despite expectations that he was set to get his first action of the preseason.