Atletico Madrid began their LaLiga Santander campaign with a 6-1 thrashing of Granada on Sunday afternoon.
Luis Suarez came on in the second half at the Wanda Metropolitano to make his debut for Atletico, scoring their final two goals in the closing stages.
Diego Simeone's side didn't waste much time in taking the lead, with Diego Costa heading in Angel Correa's cross inside the first 10 minutes.
The hosts were then awarded a penalty when Domingos Duarte brought down Joao Felix in the box, but Saul saw his spot kick saved by Rui Silva.
After the break, Los Rojiblancos continued to push for a second goal, finding it through Angel Correa just a couple of minutes after the restart.
Joao Felix added a third just past the hour mark before Suarez entered the field as a substitute for Costa with 20 minutes to go.
The former Barcelona striker made an instant impact, setting up fellow substitute Marcos Llorente for Atletico's fourth goal with a neat through ball.
Roles were reversed five minutes from time when Llorente picked out Suarez with a cross to the back post, the Uruguayan heading the ball back into the far corner to notch his first Atletico goal.
Jorge Molina recorded a consolation goal in the final minutes of proceedings but Los Rojiblancos brought up number six deep into stoppage time.
After combining with Llorente again on the edge of the area, Suarez saw his toe-poked shot come back off the post but gobbled up the rebound to round off the scoring.
Atletico couldn't have asked for a better start to the season, registering their first win in their first outing, while Granada's attention now turns to their Europa League tie against Malmo on Thursday.