Moscow: Despite lingering doubts about the use of video assistant referee (VAR) in Russia, FIFA’s refereeing bosses insisted on Tuesday that it will help — not hinder — officiating at the World Cup.

The VAR system has been the source of confusing decisions and long delays while situations are checked during testing in both the German Bundesliga and Serie A.

FIFA director of referees Massimo Busacca admits the system has been rushed in for the World Cup but insists officials are ready and VAR will help referees make better decisions in Russia.

“We ran very fast getting it ready, but we are convinced of it,” said Busacca at a press conference in Moscow.

“We are ready, we know we must be ready as there can be no experiments here.”

Busacca compared the VAR to the teams vying for the trophy in Russia.

“It’s like a team who didn’t play well before a World Cup, made mistakes but now plays much better,” said the Swiss ex-ref.

“No national team arrives at the World Cup perfect – it’s the same for us. We know that we have to improve.”

Busacca believes delays while situations are checked are worth the sacrifice for lowering the risk of wrongly-awarded goals.