This year's LaLiga title will be decided on the final day of the season in the Spanish topflight.
Atletico beat Osasuna 2-1 at home on Sunday, to take a big step towards the league crown.
Diego Simeone's men saw two goals ruled out for offside, before going behind to a Ante Budimir header.
Atletico hit back with Renan Lodi in the 82nd minute and top scorer Luis Suarez in the 88th.
The victory took Atletico up to 83 points, two ahead of second-placed Real Madrid who won 1-0 at Athletic Bilbao.
Atletico visit Real Valladolid on the final day of the season next Sunday while Real host Villarreal.
Barcelona are out of the race, after losing 2-1 at home to Celta Vigo.