Ariel Ibagaza scored one and set up a decisive second for substitute Joseba Llorente as Villarreal earned a hard-fought victory against Panathinaikos in Athens to secure a place in the UEFA Champions League quarter-finals.

Manuel Pellegrini's side reached the last four on their competition debut in 2005/06 and remain on course to emulate that despite going into tonight with a minor disadvantage having conceded an away goal in the 1-1 first-leg draw.