On the first NFL Sunday since the death of Marshawn Kneeland, teams across the country took time out before kickoff to honor the former Dallas Cowboys defensive lineman. Sunday’s slate of games comprised 12 matchups, and reports on Saturday said that the NFL sent a memo to teams requesting they hold a moment of silence prior to kickoff.

Dallas Cowboys defensive end Marshawn Kneeland, 24, died Thursday morning. Kneeland's cause of death is said to be a self-inflicted gunshot wound following a police chase for a traffic violation, according to the Frisco Police Department and Texas Department of Public Safety.

The NFL sent a memo to all teams asking them to hold a moment of silence for Dallas Cowboys defensive end Marshawn Kneeland before kickoff.

"It is with extreme sadness that the Dallas Cowboys share that Marshawn Kneeland tragically passed away this morning," the team said.

Greg Ellis deserves credit for his candor. He could have said nothing. He decided instead to share his regrets for not keeping in contact with Cowboys defensive end Marshawn Kneeland, who dies this week in an apparent suicide.

The league has requested that all hosting teams include a moment of silence and a message about suicide prevention in their pregame ceremonies.

The Hursts share their journey to encourage open conversations and support for those battling inner struggles.

The NFL mourns the tragic loss of Dallas Cowboys defensive end Marshawn Kneeland, 24, who died by apparent suicide. This weekend, all 32 franchises wi