IRVING, Texas --Add Derrick Dockery to the Cowboys' growing injury list: the veteran guard said he suffered a fractured tibia and sprained MCL in the third quarter against the 49ers.
Dockery made his first start of the season at guard in place of Bill Nagy (neck), who returned to practice Thursday. Dockery wasn't sure how long the injuries would sideline him, but obviously any fracture could wind up being a multiple-week injury.
The Cowboys signed Dockery just before the season as veteran depth and possibly a future starter once he got acclimated to the offense. Without him, rookie David Arkin is the next backup guard on the depth chart.
The timing of the injury is particularly disappointing for two reasons: Dockery had just entered the starting lineup; and this is Redskins week. He played his first four seasons, and six overall, in Washington.
"I wanted to be out there so bad," he said. "I was looking forward to getting back out there on the practice field -- coming in Monday, Tuesday and Wednesday and doing some extra things to help me on the field.
"To find out that this was happening to me was disappointing, but I'm in good spirits."
Nagy, the starter entering the regular season, had full participation after missing the 49ers game -- a good sign for his availability Monday.