Fifa president Sepp Blatter has renewed his call for the introduction of goal-line technology after a controversial incident in England's 1-0 win over Ukraine helped eliminate the co-hosts, reports BBC Sport. Marko Devic's shot crossed the line in the game in Donetsk but was not given.
Goal-line technology could be approved by the International Football Association Board on 5 July.
"After last night's match ?#GLT? is no longer an alternative but a necessity," Blatter tweeted.
Uefa president Michel Platini prefers the system of five match officials.