Japan head coach Jamie Joseph believes the Brave Blossoms have proven they can challenge the top nations at the 2023 Rugby World Cup despite a "disappointing" 20-15 loss to France in Saturday's second test.Fabien Galthie's Six Nations Grand Slam winners completed a 2-0 sweep of the test series but were pushed to the brink at Tokyo's National Stadium by a young Japan side who led 15-13 with less than 10 minutes remaining.Among the standouts for the hosts was 21-year-old flyhalf Lee Seung Sin, who marshaled the Japanese attack alongside 24-year-old scrumhalf Naoto Saito."We're a new team and …READ FULL ARTICLE