Guan Yu slays Xiahou Cun with one attack

Soon the Jingzhou soldiers came again and offered battle, when Xiahou Cun and Zhai Yuan both went out. The maneuver of the preceding day was repeated, and the Jingzhou army retreated another seven miles. But suddenly there was a detonation behind the army of Cao Cao, and the rolling of drums as for attack. Cao Ren hastily called upon his troops to return. They did so; but Guan Ping and Liao Hua then turned and followed on their heels so that the troops of Cao Cao were thrown into confusion.

Cao Ren by this time had seen that a trap had been laid and he had fallen therein, so he hastily marched with one army to Xiangyang. He got to within a short distance of the city when he saw before him a handsome banner waving in the wind, and out came Guan Yu with his green-dragon saber ready to slay. Cao Ren was powerless from fear, and, fighting being impossible, he turned off into a bye-road for Xiangyang.

Then Xiahou Cun came. He fell into a rage at the sight of the old warrior and went to fight him. But Xiahou Cun was slain in the first encounter. Zhai Yuan fled, but Guan Ping pursued and slew him. Then the pursuit was continued, and the loss of Cao Cao's side was very heavy. More than half were drowned in River Xiang. Seeing the situation was desperate, Cao Ren fled to Fancheng. Guan Yu got possession of Xiangyang (Romance of the Three Kingdoms, Ch 73).