By Tom Victor If Louis Rees-Zammit makes a success of his NFL dream, he won’t be the first top sportsperson to change disciplines. Welsh international Rees-Zammit, 22, announced on Tuesday that he was quitting rugby to try his luck on the other side of the Atlantic. Instead of taking part in the 2024 Six Nations for his country, he’ll be going in search of a spot on an NFL roster for the next full season. “I would like to take this opportunity to announce a significant career decision that I have taken after careful consideration,” the Gloucester star said in a statement. “In a move that I am …