Why are there so many flies

[anewstart2018]

on the pitch?

Not sure why but apparently they've already sprayed the place with insecticide due to an infestation.

aren’t they midges?

Are midges flies? does a quick google

And why are the Tunisians getting away with high tackling the English players?! Looks like they are in a Judo match

Don't know but I am itching just watching.

My dad was telling me about this, something to do with the stadium being right beside the river.