The Dutch side were widely successful in attacking Real Madrid throughout the first half of Wednesday's last-16 clash in Amsterdam, and appeared to break through in the 37th minute on a goal from Nicolas Tagliafico.
The Argentine headed home a rebound on a corner kick following a parry from Thibaut Courtois but upon further review the goal was ruled out.
It was ruled that Courtois was impeded by the offside Dusan Tadic, wiping out the goal to the frustration of the hosts and home supporters.
As a result of the decision the two sides entered half-time scoreless, despite Ajax's willingness to attack the three-time defending champions.
Tadic struck the post for the hosts in the 26th minute after finding space under pressure from Sergio Ramos. Hakim Ziyech, meanwhile, also created a chance for the Dutch side in the 36th save, forcing Courtois into a save with his feet.
In total, Ajax fired 11 shots in the first half compared to just four for Madrid.
Twitter reacted in predictable fashion to the goal being wiped out, with many criticizing the use of VAR and the decision rendered against Ajax.
VAR Madrid’s best player so far. VAR doesn’t have legs. VAR is a screen.— Xav Salazar (@XavsFutbol) February 13, 2019
Live look into the VAR room in Amsterdam... pic.twitter.com/lRfUU1UHY0— totalBarça (@totalBarca) February 13, 2019
VAR = Video Assisting Real Madrid— Footy Humour (@FootyHumour) February 13, 2019
NAH MAN AJAX HAVE BEEN ROBBED.......— Castro1021 (@Castro1021) February 13, 2019
NO OFFSIDE.....NO FOUL......
What a week it has been for Madrid and VAR.— EiF (@EiFSoccer) February 13, 2019
Bar Correa’s foul on Vinicius in Griezmann’s goal, every single decision has gone their way.
La VAR pic.twitter.com/8lsiwhgJ6L— 10 (@soosa_mort) February 13, 2019
VAR = Video Assisting RealMadrid is not a joke anymore. Unbelievable. In the League against Atleti and now this.— Barça Pictures #14 (@Barca__pictures) February 13, 2019
Another Champions League season and Real Madrid getting a big controversial refereeing call. There is no way Courtois is impeded there. He wasn’t getting anywhere near the header and didn’t even complain. #AJARMA— Carlo Garganese (@carlogarganese) February 13, 2019
When you realise Real Madrid are the first team to benefit from VAR in the Champions League. pic.twitter.com/9Y40knmX0M— Not Match of the Day (@NOT_MOTD) February 13, 2019