Uriah Hall has been left without an opponent. Again.

Louis Taylor has injured his back and will have to pull out of his fight with Hall at UFC Fight Night: McGregor vs. Siver on Jan. 18 in Boston, UFC officials confirmed with MMAFighting.com on Sunday. The news was initially broken by Karyn Bryant of FOX Sports.

Hall (9-4) was supposed to face Costas Philippou on the big FOX Sports 1 main card until Philippou sustained a rib injury. Taylor, the former Strikeforce and Bellator journeyman, stepped in on short notice until he pulled a muscle in his back, per Bryant. The UFC is currently looking for a replacement to fight Hall on just eight days notice. Bryant also reported that the UFC has pulled Taylor's contract.

Hall, a 30-year-old Ultimate Fighter 17 alum, gained notoriety on the show by finishing several opponents with devastating knockouts. He fell to Kelvin Gastelum in the finals. Hall, who still has a ton of promise in the middleweight division, has won two straight, most recently defeating Thiago Santos via unanimous decision despite a badly broken big toe.

UFC Fight Night 59 is headlined by a featherweight contender bout between Conor McGregor and Dennis Siver. Lightweight star Donald "Cowboy" Cerrone is coming back on two weeks notice to take on former champion Benson Henderson in the co-main event. It will be the UFC's first trip to Boston since the first-ever FOX Sports 1 card in August 2013.