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Colombo was beaten for two sacks in the last preseason game, part of a rocky start so far for the Dallas offense. It’s possible the knee problem already was flaring up.

On Sunday, it wasn’t even Colombo who turned it into a big issue. Center Andre Gurode tipped off the staff that something was wrong.

“He doesn’t complain about anything,” Houck said. “I know in the morning practice he had some (pain) and he tried to work it out. I think he probably had those in the past where he’s felt it and then he’s kind of worked it out. He just couldn’t work this one out.”

The scare with Colombo is a reminder that Dallas has four linemen over age 30. If any are lost for a significant time, and especially if two go down, it could jeopardize the team’s hopes of reaching the Super Bowl that’s being held in their stadium.

Jones insists he’s not only OK with it _ he likes it.

“When you look at a team that’s got a veteran offensive line, that’s an asset,” he said. “I’m interested in this year. We’ve got our focus right now on this year.”