Complex sentence: However, Styles' arrogance led to Dolph Ziggler, who lost a championship match over Ambrose also at SummerSlam, attacking him and challenging to a singles match, Styles won to prevent the match being turned into a triple threat match also involving Ziggler.
Split into simpler sentences: However, Styles' arrogance led to Dolph Ziggler, who lost a championship match over Ambrose also at SummerSlam, attacking him. Later, Styles defeated Ziggler to prevent the match being turned into a triple-threat match also involving Ziggler.