Cameras film play during a MLS video replay scrimmage organized in a community park, in Park City, Utah, in July. The games were staged as part of the final training camp to gauge referees' competence in and comfort with video replay.

Today, Major League Soccer. Tomorrow, the world.

Despite purists who believe the beautiful game should never be sullied by video replay, it has arrived and isn’t going anywhere. Major League Soccer will start using it for every match, even the postseason, starting Saturday.

The Video Assistant Referee, VAR for short, was showcased on an international level during this summer’s Confederations Cup in Russia and the Under-20 World Cup in South Korea, with mixed results.

But MLS has been preparing for this moment for three years, determined to get it right.

“The idea is minimum interference for maximum benefit,” said veteran referee Howard Webb, who is overseeing the league’s implementation of video replay. “We’re not trying to change the way the game is played. We’re trying to enhance it. We’re trying to make it fairer. We’re trying to make sure the outcomes are right.”

Australia’s top-flight A-League used a version of video review on trial earlier this year, and the South Korean K-League Classic began working with it in July.

At least two other top-tier leagues will add a VAR soon. The German Bundesliga will debut video replay for the season opener between Bayern Munich and Bayer Leverkusen on Aug. 18. The Italian Serie A will also introduce its version after adding goal-line technology last season.

For now, all eyes are on MLS and how it rolls out the VAR protocol. The league has not publicly stated its investment in video review.

“We’ve seen some really big players — and make no mistake about it MLS is a big player in the global soccer world — make the decision to take it on board, and undoubtedly we will be watched by the leagues that haven’t made the decision as well as the leagues that are doing it,” Webb said. “We are confident with our extensive preparation that what they’ll see will encourage them to do the same thing.”