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Johnny Walker spent much of his 15 minutes with Anthony Smith chewing up his lead leg on his way to a decision and callout of Jamahal Hill.      Related StoriesUFC on ABC 4 results: Johnny Walker chews up Anthony Smith's leg, tells champ Hill he's coming - EnclosureUFC on ABC 4 results: Ian Machado Garry's head kick leads to first-round finish of Daniel RodriguezUFC on ABC 4 results: Ian Machado Garry's head kick leads to first-round finish of Daniel Rodriguez - Enclosure