Inside the VAR process: How the referee review cycle works in MLS

ATLANTA -- In the 40th minute of a late-June match between Atlanta United and the Montreal Impact, midfielder Saphir Taïder sent a pass towards center-back Zakaria Diallo. Pity Martinez got in the passing lane, deflecting the ball into the air. As Diallo received the now-bouncing pass, United forward Brandon Vazquez arrived, stretching a raised foot to the ball, appearing to catch it and then follow through into Diallo's ankle. The defender went down, and referee Ramy Touchan blew his whistle.

"Yeah,...