Complex sentence: Haye also said that the trash talk was over and that it was down to business, which was also one of the reasons why he didn't bring his infamous t-shirt, with him holding the decapitated heads of the Klitschko brothers.
Split into simpler sentences: Haye also said that the trash talk was over and that it was down to business. That's also one of the reasons why he didn't bring his infamous t-shirt, with him holding the decapitated heads of the Klitschko brothers.