Rangers were battling it out for a place in the Champions League quarter finals the last time they faced Manuel Pellegrini. But they have to settle for UEFA's second tier competition this time around as the Chilean returns to Glasgow.
The 70-year-old was in charge of Villarreal in 2006 and is now at the Real Betis helm, who are the visitors to Glasgow this evening.
And Michael Beale will have to be on top of his game to get the better of the veteran former Manchester City and Real Madrid boss who, despite having a depleted squad, has a wealth of experience.
Rangers have struggled to find any kind of form so far this season with Beale trying to gel his new-look time. But the Englishman knows time isn't something you get much of at either half of the Old Firm.