The Brazilian limped off only 24 minutes into the 3-1 win at Anfield and the club on Tuesday confirmed he has suffered a tear to the muscle.
Aurelio has been troubled by a series of niggling injuries this season and had only just returned from an adductor problem.
Liverpool's head of sports medicine and sports science, Dr Peter Brukner, told www.liverpoolfc.tv: "He's got a significant hamstring injury.
"Unfortunately his body lets him down. He always play well when he's fit. We've been managing him carefully because he's not been playing twice in a week, but this just came out of the blue. He's obviously very down. He's frustrated because he was playing well on Sunday."
Dr Brukner also revealed central defender Daniel Agger is unlikely to recover from a knee injury in time for Thursday's Europa League clash with Braga.
Source: PA
Source: PA