Barcelona defender Gerard Pique is happy playing with three at the back.
Pique says coach Pep Guardiola's decision to play a back three rather than a back four on many occasions this season has paid off.
"The idea behind the 3-4-3 is to make us more attacking, give us more possession, and help us create more goalscoring chances.
"You have to do much more running. After matches you're noticeably more tired because you have to deal with more attacks, you get pulled out into wide areas.
"It's more punishing for the centre-backs. That said, it's been a very good thing for me personally, as it's made me more versatile."He added: "We started doing it in pre-season more or less, and the gaffer got the idea because he felt we were getting too predictable: everyone knew all about us and played with every man behind the ball.