Why wasn't Alisson red-carded for high kick and punch incidents against Ecuador?

Brazil goalkeeper Alisson was shown red twice against Ecuador on Thursday only to have VAR take back the cards both times in a controversial 1-1 draw.

In the first half of the World Cup qualifier, a red card for a high boot was reduced to yellow, while a second-half card for a punch that was also initially ruled a penalty was called off and the foul overturned.

Meanwhile, Brazil's Emerson Royal and Ecuador's Alexander Dominguez were sent off as both teams played the majority of the match down a man.

Below is a view of the first-half incident, available in the UK.

The Liverpool goalkeeper made high contact with the attacker with his boot right after his clearance, but upon VAR review, the act was deemed not dangerous enough to warrant a red card.

VAR saves Alisson from being this game's third red card! ❌

It's downgraded to a yellow card by the referee, the Liverpool keeper stays on, and it's still 10 v 10