Phil Thompson expects his former club to get through.
The Spanish side bring the narrowest of advantages to Anfield for this evening's second leg following Adrian Lopez's last-minute winner at El Madrigal last week - a home performance which the legendary Red says should not worry the Merseysiders.
Lopez's strike was met with mass celebrations from the players and coaching staff alike, and for obvious reason, but the extent of their joy seemed a touch over the top given that Liverpool remain very much in the tie despite that goal.
In the previous round, Jurgen Klopp's side netted three second-half goals to eliminate then-favourites Borussia Dortmund against all odds, and Thompson says that another special night at Anfield is on the cards again.
“I don’t think there was anything to frighten Liverpool,” Thompson told Sky Sports. “I know they have a great defensive record but that’s mainly at home.
“I think the way the celebrated the 1-0 scoreline like they were through would have been a big motivation for Liverpool and I think they will go through.”
It will be interesting to see who Klopp deploys up top, with Roberto Firmino failing to do the business last week, but Daniel Sturridge started the 3-1 defeat by Swansea in the Premier League on Sunday, meaning he may not be Klopp's preferred choice tonight.
Divock Origi - who is now injured - played a big role in the Dortmund elimination, scoring in both legs, so how they fare without the Belgian remains to be seen.