HANOI — Ivica Osim has admitted the Japanese are in a "dangerous position" at the Asian Cup finals after their stuttering start against Qatar and called for an improved performance in Friday evening's Group B game against the United Arab Emirates.

News photoJapan's veteran striker Naohiro Takahara trains in his team's final workout before Friday's game against the United Arab Emirates in Hanoi. KYODO PHOTO

The Japan coach was seething after watching his side throw away the lead against Qatar in the dying moments of Monday's match and said defeat against the UAE is unthinkable as it would put a serious dent in the three-time champions' hopes of advancing to the knockout stages.