There is a postponed match between Atletico Madrid vs Sevilla today, yes it's a match that should have happened in week 4. I can't count on Sevilla in this match, because this season they are very worrying, in La Liga they are struggling to rise and in the Champions League they have to go home early without even winning 1 victory.
It looks like Atletico Madrid will be able to comfortably win this match, and they can restore their last 2 matches that ended without a win. Sevilla is a very good opportunity for Atletico Madrid to win, especially this is a match that will be held at their own headquarters.
The match has started already and it's in the 20mins with both team playing 0-0. Just like you have said, Atletico Madrid should secure a win here as they are playing with a weaker team.
By looking at the current conditions between Sevila and Atletico in terms of performance, they should be able to get 3 points in this match.
Sevilla still has a performance that is not too good until now but it is possible that now the results will be slightly different, especially now that their focus is only for La Liga because for the Champions League they have been eliminated and cannot return to force luck in the Europa League because they are at the bottom of the standings.
At the moment Atletico's probability is still very large but indeed Sevilla also does not want to lose easily because they also still want to surprise and improve their performance which is still chaotic until now.
The match is also still quite long because this is only the beginning of the first half so it is still very far for them to exert their performance at this time Atletico are in control of ball possession but Sevilla also in the first 18 minutes is quite good from the counterattack.
The expectation is Atletico of course 3 points but it is not impossible for Sevilla to also surprise in this match.