
Diego Simeone’s side climbed to 41 points and are now three behind third-placed Barcelona on 44 points after 20 games.
Leaders Girona are top with 52 points, one ahead of second-placed Real Madrid, but the surprise package of the season have played one more game than all of their main rivals.
After a low key first half Atletico were more aggressive after the interval against LaLiga’s second-bottom side and broke the deadlock in the 55th minute when Antoine Griezmann lifted a cross for Morata to head past goalkeeper Augusto Batalla.
The referee ruled out the effort for offside but a VAR check showed Morata was marginally onside and the goal was given.