Brian Waters getting ready to play

IRVING, Texas -- After just three practices with the Cowboys, newly signed guard Brian Waters said he's open to playing in Sunday's regular-season opener against the New York Giants.

"I'm still working and progressing," Waters said after Friday's practice. "I'm close to getting there."

Waters picked up snaps with the first- and second-team offensive lines this week in practice, and by working out in the 90 degree temperatures he's getting close to his playing weight.

Waters is listed at 320 pounds but the team might want him a little under that weight.

"It's a coach's call, not mine," Waters said in regards to playing.

If Waters doesn't start, which seems likely, Mackenzy Bernadeau will at right guard. Waters should be active for the game over backup guard David Arkin. The Cowboys signed Waters to eventually become a starter on the offensive line, but when that will occur is uncertain given the limited practice time he's had. Waters said he's picked up the offensive line schemes, which was confirmed by coach Jason Garrett, so that isn't an issue.

The only problem for Waters is conditioning, and that's an ongoing process that won't be solved quickly.

"He's done a good job of trying to get himself acclimated to what we're doing on offense, and certainly his conditioning as well," Garrett said. "He hasn't played football in a long time [since 2011], but he's certainly made progress. He's had a good week and I see him getting better and better every day. We'll make those roster decisions here in the next couple of days."