Twenty 2020 Questions: Will a player outside the Big Three win a Slam?

We're answering the 10 biggest questions on the WTA and ATP tours in 2020. The entire list will be rolled out here.

During the 2010s, only three men besides Novak Djokovic, Rafael Nadal or Roger Federer triumphed on the major stage. Two-time French Open finalist Dominic Thiem came close, and is a credible candidate to break the mold as a new decade begins.

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A five-time tournament champion last season, Thiem has worked vigorously to add layers to his game. His serve is bigger, his shot selection is more meticulous, and he’s grown as a net finisher. The more he can come forward, on any surface, the better his chances.

While Nadal has stifled Thiem at Roland Garros, the Austrian owns four ATP wins over Rafa on red clay. Should he get another look at Nadal in Paris, the diligent student may finally ace his greatest test.