Japan Open Badminton tournament will begin today at Tokyo. India's top shuttlers will start their campaign in the main draw now. Fourth seeded Saina Nehwal will face Enthanon Rachnock of Thailand today.Ajay Jairam and P. Kashyap will play in the main round of Men's singles. Jairam faces Tien Minh Enguen of Vietnam while Kashyap will face Victor Exelcen of Denmark. In the mixed doubles, Jwala Gutta and V.Diju will try their luck while Rupesh Kumar and Sanave Thomas will start their campaign in the men's doubles. Jwala Gutta is also playing in the women's doubles with Ashwin Punappa.