By Harry Davies UFC legend Conor McGregor left fans scratching their heads after posting a video on an exercise bike with his ‘bulge’ on show. McGregor channelled his inner Patrick Bateman from American Psycho as he worked out on his yacht with Robert Palmer’s 1988 hit ‘Simply Irresistible’ played over the clip. It comes just days after McGregor trolled UFC rival Michael Chandler about living the high life by replying to him: “Yahct has gym”. The video sparked attention from fans and fighters as Urijah Faber, who coached against on the UFC’s reality TV show The Ultimate Fighter back in 2015, c…