With Ariake Coliseum undergoing renovations ahead of the 2020 Summer Games, eight of the world's top 25 players will descend upon Musashino Forest Sports Plaza in Chofu, western Tokyo, this week for the 2018 Rakuten Japan Open. The facility's court speed and playing conditions are unknowns, making this year's tournament particularly difficult to predict.
Here's a look at a field that's full of familiar names, minus 2017 champion David Goffin, as well as up-and-coming stars.