The Reds have left the door slightly ajar for fifth-placed Chelsea FC following 1-0 loss to Antonio Conte’s side at Stamford Bridge last weekend.
Liverpool FC have seen their Premier League form take a hit in recent weeks following their run to the Champions League final.
Jurgen Klopp’s side drew with Stoke City, Everton and West Brom before a 1-0 loss to 2017 Premier League winners Chelsea FC.
The Reds will take on La Liga giants Real Madrid in the Champions League final later this month following a 7-6 aggregate win against AS Roma.
Former Liverpool FC striker Aldridge believes the Reds will find it difficult against Brighton this weekend.
“It’s been a long hard couple of months, with one intense game after another.
“For me, the Brighton and Hove Albion game is huge. Absolutely huge. As Jurgen Klopp says, it’s a bit of a cup final.
“Hopefully the Kop will be on song. The fans have to realise what an important role they can play on Sunday.
“Brighton might not have much to play for but they have had a great season and Chris Hughton has done a fantastic job. They won’t be a pushover.
“The fact Liverpool were in this position against Middlesbrough last season should help, although there are some a few different players involved.
“We just have to make sure we defend correctly, not put ourselves under any undue pressure, do what we are good at and get the preparation right.”
Klopp’s side were 5-2 winners against AS Roma in the first leg of their Champions League semi-final before a 4-2 loss to the Italian giants in Rome.
Liverpool FC signed Netherlands international Virgil van Dijk in a £75m deal from Southampton in the January transfer window.
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