Atalanta are in the last four of a European competition for the first time since 1988, despite Mohamed Salah's early penalty giving Liverpool a 1-0 second leg win.
The stunning victory for the side who sit sixth in Serie A ends Liverpool's 33-game unbeaten run at home.
Mohamed Salah fired Liverpool to the top of the Premier League as the Egypt star's clinical finish capped a stirring fightback to beat Brighton 2-1 on Sunday.
Mohamed Salah returned with a goal as Premier League leaders Liverpool routed Brentford 4-1 despite a rash of injuries
Mohamed Salah returned with a goal as Premier League leaders Liverpool routed Brentford 4-1 despite a rash of injuries, while Arsenal demolished Burnley 5-0 to keep up the pressure in the title race on Saturday.
The announcement comes after Liverpool manager Jurgen Klopp said it "makes sense" for the 31-year-old to undergo treatment in England.
Record seven-time champions Egypt were dealt a major blow on Friday as captain Mohamed Salah was ruled out of two Africa Cup of Nations games with a hamstring injury
Egypt are only one point better off after back-to-back draws, but their immediate concern will be the health of Salah -- whose stoppage-time penalty had snatched a 2-2 draw with Mozambique.
Mohamed Salah saved Egypt from an embarrassing defeat in their opening Africa Cup of Nations game on Sunday
Mohamed Salah scored twice as Liverpool stretched Newcastle's miserable run with a 4-2 victory at Anfield to open up a three-point lead at the top of the Premier League on Monday