South Korea chiefs are unimpressed by the condition of Sunderland striker Ji Dong-won.

Ji, who moved to Wearside in the summer, was hauled off at half-time in his country's 2-0 weekend win over the United Arab Emirates.

"Ji's condition was really bad," South Korea head coach Cho Kwang-Rae.

"He was not good in training so I considered not to play him and he was worse in the match than I thought. So I had to replace him at half-time.

"His balance is off and his shooting timing is slow. I think he's physically really poor now."