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The St. Louis Rams upset the Seattle Seahawks 34-31 in overtime Sunday to open the 2015 NFL regular season, and they didn't hesitate to celebrate.

That included trolling Seahawks quarterback Russell Wilson, who earlier in the week tweeted his prediction for the game.

Screen Shot 2015-09-13 at 4.52.14 PMWilson, to his credit, hasn't deleted the tweet as of this writing. He should, however, think more carefully before making predictions for his own team.

There's no reason to give the opponent extra motivation, especially when it's a division rival with a fantastic defense.

It also would help to not try an onside kick to begin overtime and give the Rams great field position, which is exactly what Seattle head coach Pete Carroll called. St. Louis kicked a field goal on the ensuing drive, which was enough to secure a Week 1 win.

Overall, not a good opening week for the defending NFC champions.

Thumbnail photo via Jasen Vinlove/USA TODAY Sports Images