Uefa will continue to use additional assistant referees in this season's upcoming cup competitions, the governing body has announced.
The extra officials were initially tested in European U-19 qualifying competitions in 2008 before being trialled in the 2009-10 Europa League group stages. Subsequently, trials were then expanded to include the 2011-12 Champions League competition and this summer’s Euro 2012.
Despite having no decision authority over calls, the officials act as an aid to the match referee in significant areas of the field such, as the goal-line and penalty area.
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A statement on their official website read: “This [decision] follows the International Football Association Board's (IFAB) unanimous decision on 5 July 2012 to amend the Laws of the Game and allow the use of such extra officials, acknowledging the support they can provide in officiating matches, following the successful trials that were conducted in various competitions over the last few years."
The decision follows the approval of the use of goal-line technology at the same IFAB meeting, and comes after the credibility of Uefa’s additional officials system was brought into question following Ukraine’s ‘ghost goal’ against England in the Euro 2012 group stages.