Yang Feng
Yuan Shu was furious that Lü Bu reneged on his word, so he allied with Han Xian and Yang Feng, and sent his general Zhang Xun () to attack Lü Bu. Lü Bu asked Chen Gui, "Yuan Shu sends his forces to attack me because I followed your suggestion. What should I do now?" Chen Gui replied, "The alliance between Han Xian, Yang Feng and Yuan Shu is formed by a loose assembly of their forces. They have not decided on a common plan so they will not last long. They are like chickens tied up together and they cannot move in tandem. My son, Deng, has a plan to separate them." Lü Bu heeded Chen Gui's advice and wrote a letter to Han Xian and Yang Feng, urging them to defect to his side as well as promising to share the spoils of war with them. Han Xian and Yang Feng were so pleased that they sided with Lü Bu, defeated Zhang Xun at Xiapi (下邳; present-day Pizhou, Jiangsu) and captured Qiao Rui (), one of Yuan Shu's officers. Yuan Shu's forces suffered heavy casualties and many of his soldiers fell into the river and drowned.