EDMONTON – The lone heavyweight bout scheduled for UFC 240 has been taken off the card. Tanner Boser (16-5-1 MMA, 0-0 UFC) claims opponent Giacomo Lemos (5-0 MMA, 0-0 UFC) has failed a drug test, causing their matchup to be canceled. The Canadian released a statement on social media explaining his disappointment in the situation (via Facebook ): I am absolutely devastated to learn that I will not be fighting in two days at UFC 240.