
France forward Antoine Griezmann had given Diego Simeone’s side the lead with a sizzling free kick in the 69th minute in a typically tight game at the Estadio Municipal de Butarque.
But Leganés hit back when striker Guido Carillo stabbed a loose ball over the line in the 82nd after full-back Rodrigo Tarín’s cross thumped off the underside of the bar.
Atlético have failed to win their three games at Leganés since the latter were promoted to the top flight for the first time in 2016, drawing their last two outings at Butarque 0-0.
Atléti are second with 20 points, one point behind champions Barcelona who visit Rayo Vallecano later on Saturday.