Brasilia. Mixed Martial Arts (MMA) fighter Allan Nascimento has died at the age of 34.According to UFC, Brazilian flyweight fighter Nascimento was found dead on Monday morning.It is estimated that he died of a heart attack while sleeping. 'Despite the efforts of the medical team, he was declared dead at the scene,' UFC said in a statement.UFC issued a statement of mourning, expressing deep condolences to Allan's family, friends, teammates, and loved ones during this difficult time.Nascimento, who joined UFC in 2021, had his last fight in June against Mitch Raposo, in which he was defeated by split-decision.Nascimento, who had...