ABU DHABI – UFC 308 marked a pair of fresh experiences for Kennedy Nzechukwu . Nzechukwu (13-5 MMA, 7-5 UFC ) made his divisional debut Saturday at heavyweight as he defeated Chris Barnett (23-9 MMA, 2-3 UFC ) via first-round TKO at Etihad Arena on Yas Island. The fight ended due in part to an injury to Barnett’s leg, but Nzcehukwu was still happy to simply get his feet wet in his new competitive frame. “It was since my doctors told me that with my frame, my organs were going to hurt me in the long run,” Nzechukwu told MMA Junkie and other reporters at a post-fight news conference. “I was vomiting every time during fight week