Britain's Jack Draper fired a warning to Rafael Nadal by storming past Karen Khachanov and into the Adelaide International semi-finals on Thursday. The promising 21-year-old faces defending champion Nadal in the first round of the Australian Open next week and showed he was in fine touch with a 6-4, 7-6 (7/3) victory over Russia's Khachanov.
Draper will take on South Korea's Kwon Soon-woo for a place in the final after the world number 84 dominated Sweden's Mikael Ymer 6-1, 6-2 in under an hour.
Roberto Bautista Agut also moved into the final four with a straightforward 6-3, 6-2 win over fellow Spaniard Alejandro Davidovich Fokina.
He will play either Australian Thanasi Kokkinakis or Serbia's Miomir Kecmanovic next.
In the women's draw, Daria Kasatkina claimed her second straight win over a former Grand Slam champion to reach the last four.
Kasatkina defeated two-time Wimbledon champion Petra Kvitova 6-3, 7-6 (7/3), a day after sweeping past former Roland Garros winner Barbora Krejcikova.
It set up a meeting with Spain's Paula Badosa after the world number 11 beat Brazil's Beatriz Haddad Maia 7-6 (7/5), 7-5.