Manchester United winger Amad Diallo has named Lisandro Martinez as the toughest player he has faced in training. The Red Devils youngster made the claim as he took part in a fan Q&A, as covered on the official Man United website. Martinez has become a fan favourite at Old Trafford thanks in part to his full-blooded and tenacious playing style. Therefore, it comes as no surprise that the 26-year-old delivers the same intensity when training at Carrington. Diallo was asked who he found the most difficult to go up against in training, and he didn’t hesitate with his answer. “Licha [is the most d…