BRASILIA -- Brazilian men's judo team did not have any difficulty in defeating Japanese rivals on Sunday at a challenge in Sao Paulo.

The Brazilians won five out of seven matches in their last home tournament before heading for Japan to start final preparations for August's Beijing Olympics.

Sunday's victory boosted the Brazilians' confidence that they will be able to bring home an Olympic medal in Beijing.

However, two-time world champion Derly remained sober-minded.

"Although we pulled off a relatively easy win, the mistakes we made and the troubles we had proved that we are not quite in top shape for the Olympics," said Derly.

"We all have to improve in order to perform well in Beijing. The time is now in order to make the little, but necessary improvements," he added