But in Kimura's case, he never once defended him as a boxer. Hell, he's never much defended anyone, and always had a front as THE *******.
But while Sendou was criticising him, and Miyata was locked in blind hope, the only time Mashiba got irritated was against them for not recognizing something was the matter. Towards Ippo, nothing but concern.
The concern is what's ooc, imo. Never seen him openly care about anybody except his sister.