Career
Yang Yu broke into the senior side of Liaoning Football Club on September 12, 2006 in a league game against Dalian Shide as a late substitute in a 2–1 victory. After making his debut he would become a fringe player within the squad, however he would see enough playing time to score his debut goal against Shandong Luneng in a league game on August 11, 2007 in a 2–1 victory. Even during the 2009 league season when Liaoning were playing in the second tier Yang Yu would still have to wait to establish himself within the team and only became a vital member for the club during the second half of the season when Liaoning were pushing for the division title and promotion back into the top tier.