Complex sentence: Showing his contempt for Gotch and for American wrestling in general, Hackenschmidt was not in the best condition, unlike Gotch, who used his speed, defense and rough tactics to wear Hackenschmidt down and then assume the attack.
Split into simpler sentences: Showing his contempt for Gotch and for American wrestling in general, Hackenschmidt was not in the best condition. He used his speed, defense and rough tactics to wear the champion down and then assume the attack.