2 Samuel 2:16

2:16 As they grappled with one another, each one stabbed his opponent with his sword and they fell dead together. So that place is called the Field of Flints; it is in Gibeon.

2 Samuel 14:6

14:6 Your servant has two sons. When the two of them got into a fight in the field, there was no one present who could intervene. One of them struck the other and killed him.