Seymour was sent to the sideline for throwing a punch in the third quarter against the Miami Dolphins. The incident occurred with the Dolphins driving for a score that put them ahead 27-0, and they went on to win 34-14.
"I apologize to the team, to our players and to Raider nation," Seymour said. "I wasn't there to finish the game with my teammates."
Coach Hue Jackson said the officials told him Seymour punched someone on the ground.
"I told him he can't get kicked out of the game, he's one of the rocks on this football team," Jackson said.