Dallas Cowboys

In a show of support for the Dallas police, the Cowboys invited the families of the officers killed in the attack in downtown Dallas on July 7 to the opening of camp.

Dallas Mayor Mike Rawlings and members of the Dallas police force also attended.

The Cowboys took the field linked arm-in-arm. They were led by Dallas Police Chief David Brown, whose arms were linked with those of TE Jason Witten and CB Orlando Scandrick.

“The special thing about our game is it can bring a community together,” said Witten, who was behind the idea. “It can bring you up when you’re down. ... That it’s all about uniting together as a community.”

Brown said having the Cowboys show support for law enforcement was priceless.

“It’s showing support for the men and women in blue who sacrifice their lives every day to protect our citizens,” he said. “I’ve got chill bumps. ... It’s overwhelming for me and the families, who are all Cowboy fans.”

Rookie watch: The Cowboys hope fourth-round DE Charles

Tapper can step forward as a dangerous pass-rusher. The former high school basketball star said he only played football because his mother made him join the team to keep him out of trouble. He tried to get cut his first year, but he earned a scholarship to Oklahoma, where he caught a passion for the game and showed outstanding physical ability. Noteworthy: Suspended LB

Rolando McClain didn’t show up for the opening of camp and was placed on the reserve-did not report list, along with suspended DE Randy Gregory, who is in rehab. Suspended players are allowed to participate in camp. DE DeMarcus Lawrence, who will begin the season on a fourgame suspension, is in camp. McClain will sit out the first 10 games. ... Offensive coordinator

Scott Linehan said QB Tony Romo, 36, would take every third day off during camp to allow him to rest and recover.