Barcelona ace Lionel Messi was pleased with their Champions League win at Bayer Leverkusen.

Messi conceded they needed to change their focus after defeat at Osasuna on Sunday.

"We had to change the approach. This is the Champions League and we knew it would be a difficult game against a German rival. It was important to change the approach after what happened in the league.

"The Liga has become very difficult but we will continue until the end."