The two armies formed up for battle on the plain outside the town. Khalid kept the center of the Rashidun army under his own command, appointing Rafay bin Umayr as the commander of the right wing and Dhiraar bin Al-Azwar as the commander of the left wing. In front of the center, he placed a thin screen under Abdur-Rahman bin Abu Bakr (son of the Caliph Abu Bakr). At the very start of the battle, Abdur-Rahman dueled with the Roman army commander and defeated him. As the Roman general fled to the safety of the Roman ranks, Khalid launched a general attack along the entire front. For some time the Romans resisted bravely, while the commanders of the Muslim wings played havoc with the opposing wings, especially Dharar, who now established a personal tradition which would make him famous in Syria - adored by the Muslims, and dreaded by the Romans. Because of the heat of the day, he took off his coat of mail; and this made him feel lighter and happier. Then he took off his shirt and became naked above the waist. This made him feel even lighter and even happier. In this half-naked condition Dharar launched his assaults against the Romans and slaughtered all who faced him in single combat. Within a week, stories of the Naked Champion would spread over Syria, and only the bravest of Romans would feel inclined to face him in combat.