Walkthrough report: Day 7

*The Cowboys conducted a walkthrough before catching a train down the West coast to San Diego.

*The starters will play close to a half, according to Wade Phillips. “We may substitute certain guys, but we’re looking at the first half probably,” he said.

*Receiver Jesse Holley (hamstring) is expected to play. Safety Pat Watkins (knee), who has been limited in practice this week after being out since early in camp, will not play.

*Tight end Martin Rucker, who was signed yesterday, did rehab drills on the other field. He’s still recovering from a hamstring injury that caused him to fail a Tampa Bay physical last week. Phillips said he expects Rucker to practice Monday.

*Robert Brewster will start at right tackle, but Sam Young could also see time there with the first unit. Brewster also worked at left tackle with the second unit and will likely play both sides against the Chargers.