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UFC Fight Night 103: Rodríguez vs. Penn was a mixed martial arts event produced by the Ultimate Fighting Championship held on January 15, 2017, at Talking Stick Resort Arena in Phoenix, Arizona. A featherweight bout between The Ultimate Fighter: Latin America featherweight winner Yair Rodríguez and former UFC Lightweight and Welterweight Champion B.J. Penn served as the event headliner. This was Penn's first fight in the organization in over two-and-a-half years.