The NFL has upheld Detroit Lions defensive back Brian Branch’s one-game suspension for his role in Sunday night’s postgame fight with members of the Kansas City Chiefs.Branch appealed the suspension earlier this week, but the league confirmed Wednesday that the discipline will stand. He will serve the suspension without pay.The altercation erupted moments after Kansas City’s 30-17 win at GEHA Field at Arrowhead Stadium, when Branch refused to shake quarterback Patrick Mahomes’ hand and then struck Chiefs wide receiver JuJu Smith-Schuster, sparking a brief scuffle between both teams.Lions head coach Dan Campbell publicly apologized after the game, calling Branch’s actions “inexcusable” and uncharacteristic of the team’s culture.“I love Brian Branch, but what he did is inexcusable and it’s not going to be accepted here. It’s not what we do. It’s not what we’re about,” Campbell said. “I apologize to Coach Reid and the Chiefs and JuJu Smith-Schuster. That’s not okay. That’s not what we do here and it’s not going to be okay. He knows it. Our team knows it. So, that’s not what we do.”

KANSAS CITY, Mo. —

The NFL has upheld Detroit Lions defensive back Brian Branch’s one-game suspension for his role in Sunday night’s postgame fight with members of the Kansas City Chiefs.

Branch appealed the suspension earlier this week, but the league confirmed Wednesday that the discipline will stand.

He will serve the suspension without pay.

The altercation erupted moments after Kansas City’s 30-17 win at GEHA Field at Arrowhead Stadium, when Branch refused to shake quarterback Patrick Mahomes’ hand and then struck Chiefs wide receiver JuJu Smith-Schuster, sparking a brief scuffle between both teams.

Lions head coach Dan Campbell publicly apologized after the game, calling Branch’s actions “inexcusable” and uncharacteristic of the team’s culture.

“I love Brian Branch, but what he did is inexcusable and it’s not going to be accepted here. It’s not what we do. It’s not what we’re about,” Campbell said. “I apologize to Coach Reid and the Chiefs and JuJu Smith-Schuster. That’s not okay. That’s not what we do here and it’s not going to be okay. He knows it. Our team knows it. So, that’s not what we do.”