With Seattle trailing 3-0 in the first quarter, quarterback Russell Wilson flipped the ball to Harvin, who raced down the left sideline for the score. Replays appeared to show Harvin stepping out at the 21-yard line.
Seattle kicked the extra point before the play could be reviewed. San Diego went on to win the game 30-21.
"All scoring plays are reviewed by the instant replay official, in conjunction with the NFL officiating staff in New York, and are not subject to a coach's challenge," NFL spokesman Michael Signora said in a statement, via NFL.com. "Following the first quarter touchdown run by Percy Harvin, the game should have been stopped for a replay review, either by the replay official or by the officiating staff in New York."
- Scooby Axson