The United States have not been having a Grand Slam winner since 2013 with Andy Roddrick and John McEnroe explains the reason behind it.
McEnroe said: "
Now, we have good athletes. It’s that the cream of the crop, you look at Djokovic, Nadal, Federer, Murray, these people that are some of the best athletes their country has produced.
We have Tiafoe is a great athlete. He’s still learning. He made a breakthrough getting to the quarters of Australia. There’s going to be guys that are dangerous, but at the moment, the more athletes in the game because of the quickness of the game, the better chance we’ll have of making that breakthrough.
At the moment, it’s been a little bit difficult to see recently because you just — it would be so helpful for the men’s game if we had a guy that was winning, winning Slams."