At this instant, no replay in soccer

Instant replay is not happening in soccer. Good.

A Reuters article in today's NY Times reports that the International Football Association Board (IFAB) rejected the use of goalline and video technology to assist referees. Said FIFA General Secretary Jérôme Valcke, “It’s an end to the potential use of technology within football.”
FIFA made the right call.

Even if it were limited to decisions involving whether a goal had been scored, instant replay would alter the nature of the game by breaking up the flow of play while officials looked at video. If a goalkeeper made a save on the line and the attacking team claimed the ball had crossed the line, would play then be stopped for a video review, thus depriving the keeper of the opportunity to punt or throw the ball? And forget it on other plays, such as a hand ball. (The non-call of an apparent hand ball by France's Thierry Henry on a scoring play against Ireland in a World Cup qualifier renewed calls for use of video technology.) Even if a replay could show that a ball touched a player's hand, how could it determine intent.

Soccer rule changes over the years have tended to speed up the game. For example forbidding a keeper's use of hands on a passback from a teammate cut down on delaying tactics. Instant relay would have the opposite effect and would slow down the game.