There will be more than meets the eye riding on freestyle wrestler Saori Yoshida's bid for an unprecedented fourth consecutive Olympic title the Rio Games.

Not only will the 33-year-old be aiming to achieve victory in what could likely be her swansong, but she has the extra mental pressure of trying to overcome a jinx of Japanese Olympic delegation captains who have not won gold since the 1992 Barcelona Olympics.

And whereas Japan used to be a true Olympic powerhouse in freestyle wrestling, with high expectations to dominate the medal standings, the men in particular have fallen on hard times of late after failing to secure any Olympic berths at the 2015 wrestling world championships in Las Vegas.