Complex sentence: Regularly combatants Steve Walters and Ben Elias clashed while Paul Harragon and Martin Bella stood trading blows and afterwards referee Greg McCallum sent all four to the sin bin.
Split into simpler sentences: Regularly combatants Steve Walters and Ben Elias clashed while Paul Harragon and Martin Bella stood trading blows. In the aftermath referee Greg McCallum sent all four to the sin bin.