Win or Learn: MMA, Conor McGregor and Me: A Trainer's Journey Review For anyone interested in following their dream to the end of the line (Tony Parsons)Remarkable (Irish Times)Kavanagh is open and honest about his upbringing ... The journey hasn't been easy, but Kavanagh's inbuilt determination has carried him all the way (Irish Examiner) 				    	 					 About the Author John Kavanagh, who runs Straight Blast Gym Ireland, is one of the world's leading mixed martial arts coaches. His stable of fighters includes the UFC featherweight champion, Conor McGregor.