Pressing the panic button after being edged 1-0 by last season's beaten UEFA Champions League finalists in their backyard is not something a coach as tenured as Carlo Ancelotti is likely to do.
However, this game was also a litmus test for Bayern Munich's chances in the competition, and Atletico Madrid asked some questions of the Bavarians they were not equipped to answer given how they lined up on Wednesday.
"It's never nice to lose," the Italian said at his post-match press conference. "We'll have to analyse the game and then look forward.