WOLFSBURG, Germany (Interstat) — Hmburger SV II opened its Bundesliga season with a 2-1 upset victory over Wolfsburg on Saturday at Volkswagen Arena, defying pregame projections.

Interstat’s ELO system gave Wolfsburg an 81.9 percent probability to win, but the visitors prevailed. Substitute Luka Vušković scored one goal for Hamburg, with fellow substitute Jean-Luc Dompé adding the other. Wolfsburg’s lone reply came from midfielder Christian Eriksen.

The match turned chaotic in stoppage time, seeing two yellow cards and a red card issued to Wolfsburg goalkeeper Marius Müller in the 99th minute. Hamburg begins its campaign 1-0, while Wolfsburg starts 0-1.