Complex sentence: After several minutes of this offensive, Murilo's face was visibly damaged while Erikson was tired but unscathed, though still he couldn't finish Bustamante, and the bout ended in a draw.
Split into simpler sentences: After several minutes of this offensive, Murilo's face was visibly damaged while Erikson was tired yet unscathed. As he still couldn't finish Bustamante, the bout ended in a draw.