No way that should have gone to VAR. Death by slow motion replay as far as I'm concerned. When you watch it at full speed I think it's quite obvious that Mandi is trying to clear the ball.
Yet kicks the player on the ground in the ribs. Definition of dangerous/SFP. Moving the ball out of the way is the curious part of this. Player should have been cautioned as moved the ball with hand directly to prevent nix gaining posession, doesn't change the red card for me though.