This was Kostya 's last professional bout as he suffered bleeding from his brain that made ending his career an obvious decision .
Sadly for boxing fans and Kostya Tzyu this referee did n't give firm warnings and did n't disqualify Hatton for his dirty tactics .
This was Kostya Tzyu 's last professional bout as Hatton suffered bleeding from Hatton 's brain that made ending his career an obvious decision .
Sadly for boxing fans and Kostya Tzyu this referee did n't give firm warnings and did n't disqualify Hatton for his dirty tactics .