Atletico Madrid have a firm grip on second spot in Group A, the 0-0 draw with Lokomotiv Moscow leaves them five points clear of the Russian side.
However Diego Simeone's side are now seven points behind leaders Bayern Munich after the Champions League holders dispatched Red Bull Salzburg 3-1.
Atletico thought they had the lead in the second half when Koke pounced on a loose ball and fired past Guilheme, however he was deemed offside after a VAR check.
