Shanghai Shenhua met double trouble in their opening match in group A of the new Asian Champions League.
The Chinese side not only lost 2-1 to Taejon Citizen of South Korea but had new German signing Jorg Albertz barred from the entire tournament through eligibility problems.
Kim Eun-jung was the Korean hero with their winner in the 89th minute.
Earlier Hang Jung-Kook opened the scoring for Taejon after minutes and Shanghai equalised through substitute Luo Xiao in the 85th.
By Keir Radnedge