Hernan Perez headed a last-time winner to clinch Espanyol a 3-2 Primera Division victory at 10-man Real Sociedad and heap more pressure on their under-fire boss David Moyes.
Moyes' side have yet to win this season after a summer of big spending but looked set for another point when Jonathas drew them level in the 86th minute, but Perez snatched victory for Espanyol with a far-post header in the final minute of regulation time.
It started well for Sociedad at the Anoeta stadium when Imanol Agirretxe gave them a 20th-minute lead but their night turned sour when goalkeeper Geronimo Rulli was dismissed in the 42nd minute for a foul on Marco Asensio inside the penalty area.
Gerard Moreno drew Espanyol level from the resulting penalty moments before half-time and Enzo Roco put them into the lead midway through the second period before the late drama provided a further twist in the tale.
Mexico international Carlos Vela went close to giving Sociedad an early lead with a shot that whistled past the post before the Basque side took a 20th-minute lead.
Left-back Alberto de la Bella's superb long ball picked out Agirretxe, who worked himself space inside the area before turning the ball home.
Sociedad were reduced to 10 men in the 42nd minute when Rulli was shown a straight red card for his foul on Asensio in the area and Moreno converted the subsequent penalty.
Roco headed Espanyol into a 71st-minute lead from Perez's corner, but Sociedad refused to buckle and looked to have earned themselves a point when Jonathas reacted quickest in the box following Chori Castro's cross to turn the ball home.
But in the first minute of time added on Espanyol won a corner and when Alvaro Gonzalez headed the ball back across goal Perez was free to nod home the winner.
Defeat leaves Moyes' side one place above the relegation zone on goal difference after two draws and two defeats.