Borussia Dortmund completed the job against Porto on Thursday to advance to the last 16 of the UEFA Europa League after winning 1-0 away from home at Estadio do Dragao.
Already holding a 2-0 lead from the first leg, the second-placed side in Germany's Bundesliga went ahead early courtesy of a gaffe from Porto's veteran Spanish goalkeeper, Iker Casillas.
Dortmund went through on a night when Manchester United, Tottenham Hotspur, Liverpool, Valencia, Lazio, Bayer Leverkusen, Fenerbahce, Shakhtar Donetsk, Sparta Prague and Athletic Bilbao also progressed into the next round.
Villarreal, Basel, reigning champions Sevilla, Braga and Anderlecht joined them.