Derrick Dockery was looking forward to getting a crack at his old team, the Washington Redskins, but instead will have to watch as they play his new team, the Dallas Cowboys, Monday night.

Dockery, who was released by Washington in March and signed by Dallas earlier this month, started at left guard for the Cowboys last Sunday. But he suffered a sprained MCL in his right knee and fractured a tibia and has been ruled out for Monday night’s game.

“Very bad timing,” Dockery told reporters in Dallas. “I’m very disappointed I won’t be able to play. It’s Monday night. Playing in Washington, we knew how important this game was. It’s a big-time rivalry in the NFC East.”

While Dockery obviously would’ve liked to play the Redskins. He expressed disappointment in not being able to suit up, regardless of who the opponent of the week was.

“I’m a competitor. I just love being out there with the guys,” said Dockery, who spent six of his eight pervious NFL seasons in Washington. “I was just looking forward to getting back on the practice field. After you watch the film, you see things you can improve on. I just wanted to get on the field and do. It’s a minor setback, but I’ll be back stronger. … Right now, I feel like I can push off my leg. The main thing is getting the knee stronger and some stability. My main thing is getting it healthy.”

Dockery on Thursday was one of seven Dallas players who did not practice because of injury.