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Following the card change that saw Michael Bisping moved to the main event, Thales Leites has agreed to step in on short notice to fight Gegard Mousasi at UFC Fight Night 83. Leites has won five of six fights in his second UFC run, most notably defeating Tim Boetsch at UFC 183. Mousasi has won two of his last three in the UFC, but he is coming off of a loss to Uriah Hall at UFC Fight Night: Barnett vs. Nelson. UFC Fight Night 83 takes place on February 27th from the 02 Arena in London, England with Anderson Silva and Michael Bisping headlining.
