Ivica Osim has blasted the Japan Football Association for bungling the national team's build up to the upcoming Asian Cup finals.

The Bosnian coach is raging that his players still have to play two more rounds of J. League matches before reigning champion Japan's opener on July 9, while their rivals either put their feet up or work on vital team tactics.

"The players are tired and their motivation is down. It could be a first in any competition: One team enters without specialized preparation. It could be a good experience," deadpanned Osim.