But then a third rode out, and killed the Norman.

This was in the first beginning of the fight.

It soon raged everywhere.
The English, keeping side by side in a great mass, cared no more for the showers of Norman arrows than if they had been showers of Norman rain.
When the Norman horsemen rode against them, with their battle-axes they cut men and horses down.

The Normans gave way.

The English pressed forward.