Julián Álvarez was "incredulous" after his penalty kick was disallowed in Atlético Madrid's Champions League round-of-16 defeat to Real Madrid, a source told ESPN, although footage appeared to show the forward accepting the possibility that he'd touched the ball twice in conversation with teammates.

The controversial Julián Álvarez penalty decision highlighted the need for more precise and consistent officiating in soccer. Subjective interpretations of on-field incidents often lead to disputes. A new technological solution promises to address these issues and improve the accuracy of refereeing decisions.