"I had a similar year back in 1984 when I felt like I couldn't lose"

John McEnroe is referring to a time in his life when he was at the peak of his career. In 1984, he was among the most effective tennis gamers worldwide, winning 3 Grand Slam titles and becoming the first male player to win the Grand Slam in the exact same year since Rod Laver in 1969. He was likewise the very first player to win the Grand Slam in the Open Era. McEnroe was so dominant that year that he seemed like he couldn't lose. He was playing with such confidence and skill that it appeared like nobody might beat him. His success that year was a testament to his effort and dedication to the sport. McEnroe's quote is a tip that with effort and dedication, anything is possible. It is a suggestion that even when the chances appear overwhelming, success is still achievable.