Funny how JTTA wanted to make things exciting and suspenseful with a whole press conference revealing the 3rd Olympic member of the Japanese Men's and Women's team on Jan. 6, 12:55pm Japan Time. It ended up being anticlimactic because the deadline for doubles entries for the German Open is Jan. 5, so JTTA was forced to reveal its intended doubles lineups ahead of time. It's easy to guess the Japan's Olympic team lineup based on who JTTA sent to the German Open. (I may be wrong, but this is my theory based on the German Open doubles pairings)
For the Men's team, the 3rd spot will likely go to Mizutani.
- Ito/Mizutani XD Pair is declared for the German Open
- There's no M. Yoshimura/Ishikawa XD Pair declared for the German Open and Yoshimura was the only realistic choice for the 3rd player aside from Mizutani. If M. Yoshimura was selected as the 3rd member over Mizutani, JTTA would likely have sent the Yoshimura/Ishikawa Pair to the German Open to gain ranking points for seeding, but I'm assuming they didn't do that because JTTA knows it's going to send Ito/Mizutani to play XD in the Olympics and means that Miztuani HAS to be part of the Men's team.
- Niwa/Harimoto is declared as a MD pair. If M. Yoshimura were selected, they would have sent Niwa/M. Yoshimura instead. JTTA still seems to believe the two-lefty pair for Niwa and Mizutani will never work in doubles, so Harimoto, being the only righty on the team, is being sent to practice doubles for the team event.
For the Women's team, the 3rd spot will likely go to Hirano.
- Ishikawa/Hirano WD pair is declared for the German Open to practice doubles. With Ito likely playing two singles in the team event.
- No Hayata/Ito or Hayata/Ishikawa WD pair was declared, so it's unlikely Hayata is the 3rd team member.
- Hayata/Kato is declared for WD. This likely means either Hayata or Kato is the reserve player. I believe JTTA want Hayata and Kato to practice playing Women's doubles again since neither has participated in that event in many months. In case either Ito, Hirano or Ishikawa gets injured, at least Hayata and Kato will have some experience playing WD and can be a suitable replacement. Hayata might have the slight edge over Kato for the reserve spot given she can also play XD with Harimoto, and Hayata/Harimoto was also declared for the German Open.