Tottenham have struggled from set pieces this season with defenders targeting Guglielmo Vicario.
They have conceded several goal from corners with opponents pressurising the goalkeeper.
Arsenal scored their 3rd from a corner, with Havertz heading it past Vicario.
However, replay shows Ben White shoved Vicario back, leaving him totally unbalanced.
Watch the incident below:
This is not the first time this has happened. Similar incidents happened against Everton and Manchester City earlier in the season.