By Thomas Bristow Mike Tyson has shown off his impressive power in a workout video he has labelled as day one of training for his fight against Jake Paul. The heavyweight legend, who retired with a record of 50-6, will step into the ring once again to take on the YouTuber turned boxer. The sensational bout was announced last week, and will take place on July 20 at the AT&T Stadium in Arlington, Texas. Netflix have exclusive rights to stream the fight with many fascinated as to how the 30-year age gap between the two will play out. Tyson will turn 58 before the fight but he showed no signs of s…