The media learned on November 6 that Hiroki Uemoto will have surgery on his right ankle. He is not expected to miss any portion of the 2018 season.
Uemoto has had problems with his ankle since he sprained it during a game against Hiroshima earlier this year on May 5.
Source: Nikkan Sports 11/7/2017
[UPDATE 11/9 @ 11:54pm]
The Tigers announced today that Uemoto had surgery on his right ankle at a hospital in Tokyo. There were no complications and he was discharged on the same day.
Source: Sanspo 11/9/2017
[UPDATE 11/14 @ 3:15pm]
Uemoto is getting around with crutches. He started moving his body around on November 10, the day after he was discharged from the hospital.
Source: Nikkan Sports 11/14/2017