The Japan Table Tennis Association has filed a protest with the International Table Tennis Federation over a controversial ruling in the women's doubles final at the just-ended table tennis world championships in Budapest, sources said Sunday.According to the sources, Japan officials asked the sport's governing body that an instant video replay system be introduced after Mima Ito and Hina Hayata disagreed on a let serve call that turned the tide in favor of their opponents in the final earlier that day.In the fifth seesaw game after each won two games apiece, with the score tied 9-9, the of…READ FULL ARTICLE