Tommy Paul set to break into Top 20 following unprecedented Australian Open run

American men's tennis is on the rise, and few are climbing higher than Australian Open semi-finalist Tommy Paul.

During his run to his first Grand Slam semi-final, the 25-year-old has soared 16 places up the ATP Rankings to No. 19, setting himself up to crack the Top 20 for the first time in Monday's edition of the ATP Rankings.

Paul just missed out on a seed at the Australian Open as the World No. 35, but has dropped only four sets in his five Melbourne matches thus far. He knocked off 24th seed Roberto Bautista Agut and 30th seed Alejandro Davidovich Fokina on his path to the last four, where he will meet nine-time champion Novak Djokovic.

If Paul can pull off the upset, he will further rise to No. 15 by reaching the final and into the Top 10 at No. 9 with a title. Taylor Fritz, at No. 8 in the Pepperstone ATP Live Rankings, will remain the American No. 1 into February, while Frances Tiafoe makes it three men from the United States in the Top 20 at No. 15.