Arizona Cardinals star quarterback Carson Palmer has been suspended four games and fined $500,000 by the NFL for his role in the team’s Week 5 loss to the Seattle Seahawks.
Palmer was suspended after the Cardinals scored on their first possession of the game.
The suspension is for his third violation of the league’s substance abuse policy.
It also applies to his former offensive coordinator, Todd Bowles.
It was Palmer’s third violation in as many seasons.
Palmer, who was the first quarterback to throw for 400 yards in a season in the playoffs in 2013, was also penalized for two unnecessary roughness penalties.
Palmer will not play in the postseason.
The Cardinals will host the New Orleans Saints in the first round of the playoffs.
Palmer has a 3-3 record with a 3.85 yards per attempt average and three touchdown passes in three postseason games.
His last touchdown pass came in Week 6 against Seattle, when he hit Drew Stanton on a 19-yard pass that put the Cardinals ahead 20-17.
Palmer threw for a season-high 324 yards and two touchdowns in a Week 3 loss to Atlanta.
Palmer’s passing efficiency rating was 108.9.
He also had six touchdown passes and one interception.
Cardinals running back David Johnson (foot) is out for the season.
The team announced Sunday that linebacker John Abraham will miss the game with a knee injury.