IRVING — DeMarcus Ware said he was trying to get Dez Bryant focused on the remaining 12 seconds in the game Sunday at Detroit, understanding the receiver was upset the Cowboys were on the verge of losing.TV cameras caught Bryant in a shouting match with tight end Jason Witten on the sideline during a review of the Lions’ go-ahead touchdown with 12 seconds left. Ware separated them, getting in Bryant’s face.“There’s always a time and place — 12 seconds left in the game, knowing how important you are in the game — that’s not the place,” Ware said Tuesday during a charity event at AT&T Stadium for the North Texas Food Bank. “There’s always a time to approach the situation and approach it the right way.”Ware said it’s common for emotions to flare on the sideline, but that even for Bryant, that display was unusually strong.“The thing is, you’ve got to carry things a certain way, do things a certain way,” Ware said. “Twelve seconds left in the game, you’ve got an opportunity to win. You go at it as such.”Ware said he and Bryant are close and understand each other, but suggested that sideline demeanor is a matter of respect.“To get respect, you’ve got to give respect to others,” Ware said. “Me and Dez, we’re really close to each other, and he’s a great dude, a great player. Sometimes things get heated on the sideline, because we’re competitors. He’s a great competitor. There’s a time and place for everything. Everything is behind us now, and it’s on to the Vikings.”Ware, who has missed two games recovering from a quadriceps strain, said he is feeling better physically and thinks he can play this week.Waters likely doneCowboys offensive guard Brian Waters likely is out for the season with a torn triceps. Owner Jerry Jones revealed the news on his radio show on KRLD-FM on Tuesday.But the Cowboys have yet to place Waters on injured reserve as he explores his options in what could be his final NFL season.Dallas already has one starter on injured reserve, with defensive end Anthony Spencer having played only 34 snaps this season.Waters, 36, started the past five games at right guard. He also injured his knee and his ribs during Sunday’s loss to the Detroit Lions, but it is the triceps injury that affects his immediate future.Mackenzy Bernadeau will return to the starting lineup, and Jones said the Cowboys will look to their practice squad for depth. They released guard David Arkin on Saturday and signed him to the practice squad Monday. They also have guard Ray Dominguez on their practice squad.Bernadeau started 19 consecutive games after signing a four-year, $11 million deal with the Cowboys during the 2012 off-season. But he lost his job to Waters in Week 4 after Waters got back into football shape.Now, it’s Bernadeau’s turn again.“It’s an adjustment just for the fact that you go from being in the game all the time to being on the sideline and waiting around,” Bernadeau said Monday. “You never want anybody to go down and get hurt. At the same time, when your number is called, you’ve got to be prepped, and that’s how I’ll be.” Hold not all on SmithTyron Smith didn’t want to talk about it after Sunday’s game, and declined comment on it again Monday afternoon.The Cowboys’ left tackle committed a penalty that played a key role in the 31-30 loss to the Lions on Sunday. But it wasn’t all Smith’s fault, according to coach Jason Garrett.The play called for running back Phillip Tanner to run up the middle, but Tanner bounced it to the outside. Tanner gained 9 yards, but Smith was called for holding.“[Tanner] instinctively saw some daylight and green grass and bounced the thing all the way back,” Garrett said. “I think that contributed to the holding penalty.”Instead of the clock continuing to run, the penalty stopped it at 1:07. That proved to be enough time for the Lions to march down the field for the game-winning touchdown.Vega releasedThe Cowboys released defensive end Jason Vega to make room for defensive end Everette Brown. The team also released running back Davin Meggett from the practice squad. Staff writers Carlos Mendez and Drew Davison contributed to this report.