Texans like guard Josh Walker's toughness

NEW ORLEANS -- A massive interior lineman, Texans offensive guard Josh Walker is battling Chad Slade for one of the final roster spots.

At 6-5, 330 pounds, Walker is a big, strong, physical lineman.

The Texans promoted Walker to the active roster from their practice squad last year. Walker wound up playing in two games, having made a full recovery from a sprained medial collateral ligament he dealt with during a previous stint with the Green Bay Packers.

The Texans like Walker's aggressive nature and have seen steady progress from the former Middle Tennessee State standout in his second season in Houston.

"Josh Walker's doing a good job," Texans coach Bill O'Brien said. "He's a tough guy. He's…