Tommy Paul got the better of fellow American Ben Shelton to reach his first grand slam semi-final at the Australian Open.Both men were surprise quarter-finalists but 25-year-old Paul used his greater experience to secure a 7-6 (8-6) 6-3 5-7 6-4 victory and book a last-four date with either Novak Djokovic or Andrey Rublev.The run of 20-year-old Shelton, in just his second grand slam and on his first trip outside the USA, has been one of the stories of the tournament.The big-hitting left-hander was certainly not overawed playing on Rod Laver Arena for the first time but Paul was the steadier of the two and ultimately that was the difference.Paul said: "This is my first time on this court, my first time in the quarter-finals of a slam.
I'm pumped to be there and obviously really excited for whoever I play on Friday. Making the semis of a slam is everybody’s dream and I can’t believe I’m here right now.""Ohhhh what wheels!"