Of face to the meeting of gone of quarter-finals of Glass of the King 2016-17 in Anoeta, the FC Barcelona will have to go out concentrated to the maximum and avoid in the measure of the possible the errors that committed during the party of League Santander contested does some months in San Sebastián.

The exit of ball of the Barça in Anoeta was an authentic disaster. With a team split in three, with the defence, midfield and leading with a lot of metres of separation and a pressure asfixiante of the Real Sociedad, Ter Stegen had to play in a lot of case to the "patadón". And when it tried to play in short, to Luis Enrique almost gives him a taquicardia.

This was one of the indicators that the Barcelona team would be shipwrecked in Donostia, as like this it occurred finally although it finish "rascando" a point with the goal of Leo Messi. Luck of the genius of Rosario, but by the rest little more.

The Barcelona, to touch fast to keep the possession

The Barça lost the possession in front of the Real Sociedad, with some final data of 55% for the venues and 45% for the visitors. Besides, the ones of Eusebio Sacristán turned into the first team that stole him the ball and attained to mark in front of the Barcelona from 2008.

With Luis Enrique had had other crashes in which it lost the possession, but always finish winning, as it occurred with the Manchester City or the Bayern of Munich does two seasons. Now it will be necessary to analyse all the errors not to commit them again. At stake it is a square in the semifinals of the Glass of Rey.