Meanwhile, Gao, after breaking with Emperor Mingzong, submitted to Wu, and the Wu emperor Yang Pu (Yang Longyan's brother and successor) created Gao the Prince of Qin. Emperor Mingzong ordered Ma to attack Jingnan. Ma sent Xu and Ma Xifan to attack Jingnan. When the two armies met, Gao Jixing's nephew Gao Congsi () challenged Ma Xifan to single combat, but the Chu officer Liao Kuangqi () came out and engaged Gao Congsi instead, killing him. Gao Jixing then sued for peace, and Xu and Ma Xifan withdrew. However, for some time, there continued to be border skirmishes between Chu and Jingnan.