German First Group official Felix Zwayer was assisted by VAR Tobias Stieler - UEFA First Group referee as well - in two goal/no-goal decisions:
Both off- and onside decisions were orginally incorrectly taken by the assistant referees, so that Tobias Stieler contacted Felix Zwayer and informed him about the appropriate decisions immensely influencing the game.
In the second incident, the VAR correctly did not intervene: The penalty decision itself seems to be correct or at least clearly supportable. Even though there was an offside position just before the penalty offence, it is at least acceptable to not deem the Spanish player as actively involved in play by interfering with an opponent (he slightly crosses the French defender's running path, but does not clearly obstruct or impede his movements).
In situations where the VAR checks or corrects decisions taken by the match officials, communicating decisions in a convincing and efficient way will be tremendously important. Part of that is the time intervall between the situation to be checked and the decision taken by the referee upon VAR advice. Europe's leading associations consider 10 to 15 seconds as ideal and goal for the future. Here, both decisions required 40 seconds, even though it is unclear whether replays were maybe available relatively late.
What do you think about the situations?
What went right, what can be optimized in future cases?
video source: Arbiter Café (thanks to our user RayHD)