The unbeaten champion towered over the challenger, showing off the 10cm (4") height advantage he has. The challenger however looked like a man who barrel chested and tough, a typical Argentinian tough guy if you will.
At the weigh in Yamanaka wasn't just the taller man but also the heavier man weighing in at 117¾lbs. Surprisingly this was his lightest weight in several years however it's not far from his typical 118lbs. It is possible he's over trained though we suspect he's just come in bang on the weight and used slightly off scales prior to the weight in, draining a slight bit more than was needed to. Despite weighing his lightest he looked in terrific shape and there is no sign of struggling to make weight.
The challenger was was 117½lbs. We're unsure where this fits in terms of his recent weights, due to the numbers not being regularly reported, though we know it's not his heaviest recent weight as he did weigh in at 121lbs just a few fights back, and recently won a regional Super Bantamweight strap.
(Image courtesy of boxingnews.jp)