Perhaps Courtney Greene is a bigger contributor to Martellus Bennett’s back problems than the beds in Albany. (Phelan M. Ebenhack / AP)

Injuries are adding up for the New York Giants, particularly along the defensive line.

Shaun Rogers is out for the season because of a blood clot in his lower leg, Coach Tom Coughlin said. He had lost 50 pounds to make weight and being out “is just a sad thing,” Coughlin said.

Martin Parker, who was hurt in the Giants’ preseason opener Friday, will have surgery to repair a herniated disc in his back.

Marvin Austin will be examined for a back problem.

The Giants have a theory about the origin of their aching backs. It’s the mattresses in their SUNY-Albany dorms, which they said are either too small or too hard.

“Everybody’s been complaining about their back because the beds in the dorms are fairly hard,” Linval Joseph told Mike Garafolo of the Newark Star-Ledger. “My back’s been hurting, too. Like I said, I think it’s just the bed.”

Offensive tackles Will Beatty and James Brewer have had back tightness as well and Martellus Bennett had his princess-and-the-pea complaint about the bed, too.

“We’re big humans. Every bed is small,” Bennett said. “You can’t put a damn dinosaur in a twin-sized bed. . . . A normal-sized human jumps into a regular-sized bed and it fits perfectly. Large, big humans jump in a regular-sized bed, the bed’s too small.

“My back doesn’t hurt. My back feels great. I have a great back.”

By early afternoon, Mattressgate had been put to bed, with the Giants preparing to leave Albany and pointing out that players don’t sleep on dorm mattresses. The team purchases its own for players (via Ralph Vacchiano of the New York Daily News). And, if players complain, the Giants say they buy new beds.

Follow us: @CindyBoren | @MattBrooksWP