Yu Siyuan, from Shanghai, currently works at Tsinghua University's sports Department, majoring in sports politics. He has published 7 CSSCI papers as the first author. Among them, 2 are authoritative journals and 3 are reprinted in full by the photocopy materials of Renmin University newspapers and periodicals. At present, he is the reviewer of several CSSCI journals in sports. At CISS, he will research sports diplomacy and sports politics.