Alexander Gustafsson vs Fabricio Werdum Analysis and Prediction

Alexander Gustafsson was about to retire from the sport. He announced it in the Octagon, but it didn't take long for the itch to come back. He moved up to heavyweight and will be taking on Fabricio Werdum on Fight Island 3. Will the move up in weight rejuvenate his career? Will Werdum be able to turn back the clock after a bad performance his last time out?