Natural talent certainly exists. I used to be into boxing. Trained 6 times a week really hard for many years and improved a lot of from where I started. From time to time we would have some new guy come who clearly didn't know anything about boxing or fighting. But within weeks he would learn and get better than almost anyone else in the gym. He would be faster and punch harder. In the same way Mozart was able to compose music at the age of 3 or Gauss just understood math naturally some people just understand certain sports. In school we had a guy who could run around 10.5 over 100m without any training. I could never reach that no matter how much I trained.

Pro sports is full of natural talents and the top guys are the ones who also work hard in addition to their natural abilities.