Detroit Lions safety Louis Delmas was fined $5,000 for wearing wrong-colored socks during last Sunday's game against the Arizona Cardinals.
NFL rules regarding team uniforms only allow Lions players to wear blue or white socks. Delmas wore blue and black socks, which violated the league's dress code.
Delmas said he was not told by the team's equipment staff that his socks were in violation.
Delmas did not practice Friday for the second time this week because of a knee injury but is expected to play Sunday against the Washington Redskins.