Vaclav Prochazka scored the only goal of the game in the 26th minute as Viktoria Plzen beat holders Atletico Madrid to qualify for the knockout stages of the Europa League as Group B winners.
Both sides had already qualified for the next stage but Plzen's win helped them move above the Spaniards into pole position on 13 points. Atletico had Brazilian Diego Costa sent off in injury time.
Also in Group B, Hapoel Tel Aviv claimed their first win with a 2-0 victory over Academica in Israel. Victor Merey and Hanan Maman scored in the second half, although both sides had already been eliminated.
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