On January 18th, Dublin’s Conor McGregor will kick off his 2015 campaign with a return to the city where he first made his name in the United States. He takes on fellow featherweight contender Dennis Siver in the main event of a special Sunday edition of UFC Fight Night in Boston, Massachusetts. The five-round featherweight matchup marks McGregor’s first visit to Boston since an August 2013 victory against Max Holloway. Since then, “The Notorious” has been unstoppable, increasing his unbeaten streak to 12-0 with 2014 knockouts of Diego Brandao and Dustin Poirier, both of which earned Performance of the Night awards. UFC Fight Night: McGregor vs Siver — Sunday, January 18th, live from TD Garden in Boston, Massachusetts.