Why was Germany’s extra-time goal against Paraguay disallowed after a VAR review?

Jurgen Klopp has directed a dig at Arsenal following a controversial decision during a match against Paraguay. Jonathan Tah believed he had headed Germany into the lead during extra-time, but the goal was subsequently disallowed after a VAR review. This intervention by the Video Assistant Referee sparked the reaction from Klopp, who used the incident to aim his criticism towards Arsenal, reflecting the tension surrounding the disallowed goal and the officiating process involved.