There was no hiding Naomi Osaka's joy -- and relief -- on Wednesday. After dropping the first set in spectacular fashion to No. 20 seed Karolina Muchova, Osaka stormed back for her biggest victory ...

Screengrab of Naomi Osaka's Instagram story (@Naomiosaka) The smiles in the photo reflect the mood in the camp as Naomi Osaka, the former World No. 1, looks to bounce back to winning ways.