Both Confederation Cup games played on Sunday in Russian Federation left teams confused by decisions - reached more slowly than expected - by referees taking advice from assistants watching multiple replays.
The Confederations Cup kicked off with host nation Russian Federation opening the World Cup rehearsal tournament against New Zealand. The Kazan Arena, which boasts the largest outdoor screen in Europe, opened in 2013 and also staged the Fina World Aquatics Championships in 2015.
Do you ever have any question about anything you wish to ask and get answer?
Glushakov dinked the ball over goalkeeper Stefan Marinovic, before being in a three-man race with two New Zealand defenders who were rushing back to clear the ball off the line.
"Today we have to focus in this Confederations Cup".
"The only negative comment was that it's hard for the players' feelings during the game".
The hosts had a positive start to the tournament which serves as a test run of facilities ahead of the FIFA World Cup to be hosted them in 2018.More news: Juventus join contest for Gunners defender Hector Bellerin
Video review is on trial in Russian Federation and Infantino hopes it can be fast-tracked for approval at the 2018 World Cup to help referees overturn "clear errors" in game-changing situations such as penalty kicks awarded and offside rulings affecting goals.
Russia's opening goal had an ugly finish after two pretty pieces of individual skill once the All-Whites defense needlessly lost the ball.
Alexander Yerokhin sparked the attack with an interception around 30 yards from goal, and his pass was helped on by Poloz into the path of Denis Glushakov. Aleksandr Samedov's corner found Viktor Vasin who saw his header hacked clear by Michael McGlinchey.
"It's the first time our team has played with this new technology and when we were on the pitch we were very concerned", Vidal said after the match.
Ten minutes before kickoff, both teams lined up in front of the main stand to listen speeches by Putin and FIFA President Gianni Infantino.
Pizzi says the Chile staff is "optimistic from the images we've seen, but we understand and know that the player still feels pain, and that's why we'll wait until tomorrow to decide if he plays". On top of that, events in the early days of last year's Uefa Euro 2016 and at domestic games in Russian Federation have led organisers to accept that they will need to be vigilant in the face of fan violence, while the reputation of some underground fan groups for racism is another issue that will hang over the build-up.