Barcelona 3-0-Roma: Wednesday At Nou Camp Lionel Messi Headbutts Mapou Yanga Mbiwa Scoring Just Seven Minutes Later

Lionel Messi threw an aggressive headbutt at Mapou Yanga-Mbiwa when the pair squared up after an altercation

A melee then ensued as the Argentine grabbed the French defender by the neck and pushed him away

They were both separated by Roma's Leandro Castan and referee Javier Estrada Fernandez before being booked

Messi then scored seven minutes later in the 41st minute after Neymar had opened the scoring in the 27th

Champions League final goalscorer Ivan Rakitic then netted the final goal at the Nou Camp in the 66th minute

Barcelona talisman Lionel Messi (right) launched an astonishing headbutt at Roma defender Mapou Yanga-Mbiwa

The 28-year-old then grabbed the towering 26-year-old France international by the neck with his left hand and pushed him

Alessandro Florenzi was then booked for going cynically through the back of Neymar and Radja Nainggolan made it a hat-trick of cautions for the visitors in the first half when he went into the book for complaining.

But it was impossible for things to turn too ugly as Barcelona produced some of the beautiful football that won them the treble last season to beat Rudi Garcia's team.

Their second goal was picture book with Luis Suarez dribbling in from the right past Vasilis Torosidis and feeding Dani Alves who teed-up Neymar. 

He laid the ball off to Messi who found the corner with a vicious curling shot.

That doubled Barca's lead after the Brazilian had opened on the scoring on 26 minutes.

Messi then scored just seven minutes after the 34th minute altercation, in which both players were booked