Newly-crowned Bundesliga champions Bayer Leverkusen reached the Europa League semi-finals on Thursday and stretched their undefeated run in all competitions this season to 44 matches.
The German side drew 1-1 at West Ham in the second leg of their quarter-final tie and went through 3-1 on aggregate.
Michail Antonio put West Ham ahead on 13 minutes before Jeremie Frimpong levelled in the 89th minute for Xabi Alonso’s side.
Leverkusen will face Roma for a place in the final.
Atalanta Spoil Klopp’s Farewell Party
Meanwhile, Liverpool were knocked out of the Europa League by Atalanta with the Italian side reaching the semi-finals 3-1 on aggregate on Thursday.
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, thanks to their three-goal lead established in the quarter-final first leg at Anfield last week.
In what is becoming a sobering climax to the season, Liverpool have won just three of their last nine games in all competitions and again looked tired after already having played 52 games this campaign.
Jurgen Klopp may well only have the League Cup to show for his final season on Merseyside as the German’s team have been eliminated from the FA Cup and Europa League and trail Manchester City in the Premier League title race.
Gian Piero Gasperini called Thursday’s match probably the most important Atalanta had ever played and his players were hailed as heroes at the final whistle by a pulsating crowd at the Gewiss Stadium in Bergamo.
Fireworks were shot into the air from behind the stands while in the ground supporters bounced and roared at a huge victory for their team against giants of European football.