Jurgen Klopp admitted Lionel Messi was "unstoppable" on Wednesday after he left Liverpool needing a miracle to reach the Champions League final. Luis Suarez poked in against his former club before Messi hit a late double, the second a stunning free-kick for his 600th Barca goal, as his team took a 3-0 lead from a pulsating semi-final first leg ahead of next week's return at Anfield.

"He's unstoppable," said Klopp afterwards. "Obviously we couldn't defend the free-kick. What a strike. He's a world-class player but I knew that already. It's no surprise." Klopp could only smile after Messi's curling shot nestled in the top corner but this result was harsh on his side. They matched Barcelona in the first half, dominated them early in the second and could still have left with an away goal after Messi's brilliant brace, only for Mohamed Salah to hit the post. "I said to the boys I was proud of how we played against a side like this," Klopp said.