Ottmar Hitzfeld has expressed his disappointment following Switzerland's World Cup defeat against France.
The Swiss were hammered 5-2 in Salvador and fell behind Ecuador in the Group F table after the South American side claimed a 2-1 win over Honduras.
"This is a black day for the Switzerland team. These two goals after the first quarter of an hour killed us," he is quoted as saying by 24 Heures.
"We did not play at our level today. At 2-0, it became very hard for us. They exploited our mistakes to put us in trouble.
"They have shown a lot of composure. France are very strong, we should not be blinded by the FIFA Ranking."
Switzerland face Honduras in their final group match next Wednesday.
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