A Twitter user who directed racially abusive messages Saturday at Gamba Osaka's black Brazilian striker Patric claims to be a supporter of Urawa Reds, according to the poster's profile on the social networking service.
The messages were posted following Gamba's 3-1 away win in the J. League Championship semifinal against Urawa in which the 28-year-old scored the third goal in extra time to secure a place in the two-legged final against Sanfrecce Hiroshima.
Gamba condemned the tweets on the club's official website, while the J. League said it would "continue working to stamp out racism."