A huge error from Atletico Madrid goalkeeper Thibaut Courtois allowed Zenit St Petersburg to snatch a vital Champions League point against the high-flying Spaniards as they drew 1-1 in Russia on Tuesday.
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An under-strength Atletico, already assured of a pass to the knockout stages as Group G leaders, had taken the lead eight minutes into the second-half when Adrian Lopez broke clear of the Zenit defence and finished confidently low past Juri Lodigin.
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However, the Russians were saved 17 minutes from time when Courtois allowed teammate Toby Alderweireld's looping header to drop into his own net to end Atletico's 100 percent record in the Champions League so far this season.
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The result does still dent Zenit's chances of progressing to the last 16 as they now need to beat Austria Vienna on matchday six and hope that Porto drop points against the Austrians later on Tuesday or when they visit Madrid in two weeks time.