Intro:

Pierluigi Collina, the chief refereeing officer for UEFA, praised the performance of match officials at his news conference in Warsaw on Tuesday.

Script:

The match officials at Euro 2012 were once again training in Warsaw on Tuesday - all under the watchful eye of their boss - the unmistakable figure of Pierluigi Collina, who is now the UEFA head of referees.

At a news conference, Collina assessed the performance of the match officials at Euro 2012 as 'very good' - as well as the behaviour of the players.

Questions though soon turned to the few glaring errors so far in the tournament - with Collina admitting that the 'goal' not given for Ukraine in their game against England was an obvious mistake.

SOUNDBITE: (English) Pierluigi Collina, chief refereeing officer for UEFA:

(referring to 'goal' not given for Ukraine against England)

"But anyway the ball crossed the line. That was unfortunately a human mistake made by a human being. Would have been better not to have it of course, but human fails. We all know it, but nevertheless this is the only one problem we had with this experiment in roughly one thousand matches we played."

UEFA General Secretary Gianni Infantino explained that his governing body must work within the laws of the game that they are given, and they have no powers to introduce goal line technology.

SOUNDBITE: (English) Gianni Infantino, UEFA General Secretary:

"So we do with 'Les moyens du bord' (make do and mend) as we say - with what we can. We think that in addition to seeing the goal or not goal the additional assistant referees give a great help to many other situations to the referee. So from our side the experiment is very, very positive. Now the fact that a mistake happened yesterday night, just the night before this press conference - it is bad luck, but it shouldn't hinder us."

The International Football Association Board will meet in Kiev next month where they're expected to ratify some form of goal line technology currently being tested by FIFA.