ALAMEDA -- The Kansas City Chiefs are dealing with tragedy in the only way that makes sense in their world -- going to practice, attending meetings and playing on Sundays.
It's been less than two weeks since linebacker Jovan Belcher shot and killed his girlfriend, Kasandra Perkins, before driving to the club facility and committing suicide in the presence of coach Romeo Crennel, general manager Scott Pioli and linebackers coach Gary Gibbs.
The couple is survived by a 3-month-old daughter.
"I just think that reality is reality and you cannot undo what has already been done," Crennel said Wednesday in a conference call. "You have to try and move on the best that you can. In the business we're in, moving on is our hours on the football field, and we have to focus on that. ... It's been good therapy for the team, for the coaches and even for the organization."
The Chiefs (2-11) played the day after the deaths of Belcher and Perkins, beating the Carolina Panthers 27-21 on Dec. 2. They fell to the Cleveland Browns 30-7 last week and visit the Raiders (3-10) Sunday at O.co Coliseum.
Coaches talk of overcoming adversity each week in reference to injuries, penalties and being behind on the scoreboard in the fourth quarter.
When it comes to real tragedy, Raiders quarterback Carson Palmer said nothing can prepare a team for the death of a teammate. Palmer was quarterback of the Cincinnati Bengals when wide receiver Chris Henry died in December 2009.
Henry was in the back of a pickup truck and engaged in a domestic dispute with his girlfriend, Loleini Tonga, the mother of their three children. He fell out of the truck when she drove forward, striking his head and dying the following day from the blunt force trauma.
It happened in Charlottesville, N.C., while Henry was away from the team with a broken arm. The Bengals were 9-4, in command of the AFC North, and lost three of their final four games, including a wild-card loss to the New York Jets.
"I remember being told when we came out of meetings, and we just got together and prayed for his kids, prayed for his fiancée, his mom," Palmer said. "When something like that happens it doesn't hit you. It takes awhile to realize it because you're so busy with everything else."
The grieving process varies with the individual. Palmer said Henry's death truly didn't sink in until after he returned from the funeral.
"You start thinking about their family, their children, all the people that were affected forever," Palmer said. "It's hard to grasp right away. Obviously it's an awful situation (in Kansas City), and I know we as a team have been thinking about them. All you can do is pray for them."
Raiders linebacker Omar Gaither agrees with Crennel's assessment that football could afford some comfort.
"This, honestly, truly, is an escape," Gaither said, surveying the locker room. "There's so much involved in getting ready for a game. Granted, it's tough, those guys in the linebacker room, they see an empty seat. It's a tragic incident, it probably won't hit them too hard until after the season when they're just sitting around and doing nothing."
Chiefs safety Eric Berry said the game preparation helps up to a point.
"We've just been trying to stay focused on what we do, but I'm not going to lie, it's been tough," Berry said on a conference call. "We're all human, and we've got emotions and feelings."
Said Palmer: "It's hard to take your mind off it. You can stay busy and have meetings and film and games, but when you lose somebody that's close -- that's a teammate -- you're always thinking about 'em."
Kansas City (2-11) at Raiders (3-10), 1:25 p.m. CBS