Title favourites Japan were unable to impress in their 2011 Asian Cup opener against Jordan and eventually had to settle for a 1-1 draw, much to the dismay of head coach Alberto Zaccheroni.
"I am not satisfied with the result. Japan controlled the match over the 90 minutes while Jordan played defensively. It was the opening match and I knew it would be difficult," was Zaccheroni quoted as saying by reporters.
"I knew we did not have much space on the pitch, so to cope with that we needed to speed up our play.
"I could not imagine this result, of course, because we always play to win matches and that is how we prepared ourselves. They scored first and from that they gained confidence against us. That goal influenced the match."
Japan take on Syria on matchday 2 on Thursday 13 January.