Lionel Messi warned his Barcelona teammates that their place in the Champions League final is still not certain despite his two-goal salvo in a 3-0 semi-final first leg win over Liverpool on Wednesday.

"It would have been better to win 4-0 than 3-0 but it is a very good result. It's not definitive, we are going to go into a very complicated atmosphere, with a great history," said the Argentine star. Messi's second goal was the 600th of his Barca career and he reached the landmark in stunning style, curling in a free-kick — his 42nd goal off a free-kick goal in the 600.