 The conviction later made it difficult for Katsidis to obtain a visa to the United States, which was refused twice in 2005 and 2006.On 17 February 2007, a bout for the newly created and vacant WBO interim lightweight title was made between Katsidis and Graham Earl at the Wembley Arena in London.In an action-packed and fast-paced fight, Katsidis and Earl went toe-to-toe and traded many heavy blows, during which Earl was knocked down twice in the opening round and again in the second.