Today, ahead of that bout, saw trio of notable names being asked for their predictions of the fight.
Of those notable fighters two were former world champions whilst one if a current world champion and prospective future opponent.
One of those men was Satoshi Iida (who went 25-2-1, 11 KO's, in a professional career that began in 1991 and ended in 1998). Iida, pictured far left, predicted that Tanaka would stop Yedras in the 9th round of the bout.
One of the retired men was Keitaro Hoshino (who went 23-10, 6KO's in a professional career that twice saw him win the WBA Minimumweight title between 1988 and 2003). Hoshino, in the centre of the picture, predicted a 6th round KO for Tanaka.
The third man may be more recognisable to current fans who should recognise the baby-ish face of Katsunari Takayama (29-7-0-1, 11), the current IBF Minimumweight champion and prospective opponent for Tanaka. Takayama predicted an 11th round TKO for Tanaka.
It's worth noting that whilst these predictions are all for a Tanaka stoppage, Yedras has never been stopped and his only loss was to the exceptionally talented Carlos Buitrago. So a stoppage by Tanaka would be very impressive.
Kosei Tanaka chases records but will Julian Yedras be a pushover or a real obstacle? (Preview)
(Image courtesy of daily.co.jp)