Complex sentence: Referee Tony Peres inexplicably stepped in between the fighters, signifying the end of the round, even though there were about 25 seconds left, giving Frazier precious time to regain his bearings and continue fighting.
Split into simpler sentences: Referee Tony Peres inexplicably stepped in between the fighters, signifying the end of the round, even though there were about 25 seconds left. Thisk gave Frazier precious time to regain his bearings and continue fighting.