Geno Smith's return to Seattle could result in a major fine for the first-year Las Vegas Raiders quarterback after he was seen flipping off Seahawks fans as he ran onto the field on Thursday evening.

Smith and Raiders defensive end Maxx Crosby were seen making obscene gestures toward Seahawks fans as they entered the field Thursday night for their preseason game. The gestures — giving the fans the double bird — were similar to what Lions safety Brian Branch was fined for last November in a game against the Packers.

Raiders quarterback Geno Smith played five seasons in Seattle, three as the Seahawks starter, before the team traded him to Las Vegas.