Today both men hit the scales and both were just the limit weighing in at the same weight, 104.72lbs (or 47.5KG's).
For Tanaka's that's essentially the same weight he was when he fought Ryuji Hara back in October 2014, in what is currently his best win to date. It's tied with his career low and is 2lbs lighter than he was in his first couple of bouts as a professional fighter. From what we under-stand he has cut his body fat to around 3% for the fight and it seems clear than he won't be hanging around at 105lb for too much longer, win or lose.
As for Yedras we're missing a number of his career weights, however this is the lowest that we've seen recorded. His previous lowest weight was 105lbs, which he'd had several times including in his bout with Carlos Buitrago back in 2013, his only loss to date.
At the signing ceremony, which also took place today, both fighters sounded confident of picking up the win. Yedras stated he was wanting to take the title back to Mexico whilst Tanaka seemed to feel he speed would be the difference when the men get in to the ring.
If Tanaka wins he'll set a new record for fewest fights to a world title by a Japanese fighter and he'll also set up a domestic superfight with IBF champion Katsunari Takayama later in the year. If that unification comes off Tanaka could potentially become the quickest fighter to unify titles, in the history of the sport.
Kosei Tanaka chases records but will Julian Yedras be a pushover or a real obstacle? (preview)
(Image courtesy of daily.co.jp)