Team news - Japan make two changespublished at 14:47 British Summer Time 11 October
Wales v Japan (15:00 BST)
Japan have mostly stuck with the side that ran Scotland close in round two, with just two changes.
Kotomi Taniguchi replaces Asuka Kuge at hooker, with Misaki Matsumura coming in on the wing in place of Rinka Matsuda.
Japan have a dangerous back row, with their powerful ball-carrying number eight Seina Saito scoring four tries in her last two outings, while the skipper Iroha Nagata is also a threat.
It should be an interesting battle between her and Wales' standout player of the year, Alex Callender.
Japan: Sora Nishimura; Misaki Matsumura, Mana Furuta, Haruka Hirotsu, Komachi Imakugi; Ayasa Otsuka, Moe Tsukui; Sachiko Kato, Kotomi Taniguchi, Wako Kitano, Yuna Sato, Otoka Yoshimura, Masami Kawamura, Iroha Nagata (capt), Seina Saito
Replacements: Asuka Kuge, Manami Mine, Nijiho Nagata, Kyoko Hosokawa, Jennifer Nduka, Megumi Abe, Minori Yamamoto, Kanako Kobayashi.