A text message from a referee at the Confederations Cup has convinced former leading international match official Pierluigi Collina that video reviews in football are here to stay.
Collina, FIFA's chairman of the referees committee, said one of the referees using the video assistant referee (VAR) system at the tournament sent him a text after his match saying, "I am very enjoying the matches because I feel less pressure."
Collina said: "This is what the referee thinks." Without VAR he is going on the pitch knowing he might not have enough information to make a correct decision.
If "they do not have the angle that one of more than 30 cameras can offer we cannot blame the referee."
The VAR is "a very positive tool to help the referee avoid making a mistake" but should only be used for clear incidents, Collina said.
The VAR, which was being tested at the Confed Cup, could be used at the World Cup next year, but Collina said so far only 74 matches in all have used the system, which will also be tested in some European leagues next season.
The rule-making International Football Association Board (IFAB) is expected to review the system at a meeting in March when it could also give the go-ahead for its use at the World Cup.
"We see the very positive results but we are also aware we can improve," Collina said.
FIFA president Giovanne Infantino said video reviews were the "future of modern football" and that "we wrote football history" with their use at the tournament.
It was used for six game-changing decisions so far and without it the outcome of the tournament would have been different, he said.
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