London Olympic judo gold medalist and world champion Kaori Matsumoto was knocked out in the second round of the Grand Slam Tokyo on Friday in the women's 57-kg category.

Matsumoto defeated Indonesia's Ni Kadek Anny Pandini by ippon in the first round, but suffered an ippon defeat to former world champion Rafaela Silva from Brazil on the first day of the tournament, one of the qualifying competitions for the Olympics next summer in Rio de Janeiro.

Twenty-year-old Tsukasa Yoshida won the division for the first time, downing French Helene Receveaux with an ippon in the final. Nae Udaka, who won last year's worlds, was also knocked out in the second round by Hedvig Karakas from Hungary on shido penalties.