Chelsea snatched a dramatic late goal through Demba Ba to beat Paris St Germain 2-0 and reach the Champions League semi-finals on the away goals rule on another memorable European night at Stamford Bridge on Tuesday.
Atletico Madrid tamed Lionel Messi and Neymar to send La Liga rivals Barcelona crashing out of the Champions League after Koke's early goal secured a shock 2-1 aggregate success at the Calderon on Wednesday.
When the dust has settled on Wednesday's shock Champions League exit at the hands of Atletico Madrid, one question that will be on the lips of many Barcelona fans is: where was Lionel Messi?