Lü Fan
When Sun Ce defeated Wang Lang, the Prime Minister Cao Cao appointed Chen Yu (陳瑀) from Haixi (southeast of present-day Guannan County, Jiangsu) the Administrator of Wu Commandery. Chen Yu secretly plotted to ally with Yan Baihu to attack Sun Ce. However, Sun Ce sent an naval detachment led by Lü Fan to launch a surprise attack against Chen Yu while he defeated Yan Baihu. Chen Yu was quickly driven out and fled to join Yuan Shao, whose territory was far away from Sun's.