Liverpool manager Jurgen Klopp was left to rue their dire first-leg performance against Real Madrid as his side exited the Champions League with barely a whimper. The hosts could not fashion another of their famous European comebacks as despite registering 15 shots they managed just four on target and Real goalkeeper Thibaut Courtois was barely tested in the goalless draw. But what really cost them was their performance in the Spanish capital for last week's first leg when their opening 45 minutes was woeful and led to them losing 3-1. "We started the game really well. We didn't lose the tie tonight, we lost the game in Madrid, it was clear," he said. "If we had gone 1-0 up it would have been a different game but because of the experience of Real Madrid and their situation we had to chase the game and they controlled the game and had counter-attacking chances themselves. With two good performances we would have had a better chance." Real will face Chelsea in the semi-finals, while the other last-four encounter will be between Manchester City and Paris Saint-Germain. City secured their progress with a 2-1 win at Borussia Dortmund, for a 4-2 aggregate victory, while PSG knocked out holders Bayern Munich on away goals. Ian Hawkey picks out his star performers from the Champions League week in the picture gallery above. To view the next image, click on the arrows or swipe if on a mobile device.