Rafael Nadal is into a Grand Slam singles semi final for a 36th time.
The Spaniard beat Canada's Denis Shapovalov in five sets - 6-3, 6-4, 4-6. 3-6, 6-3 at the Australian Open.
Nadal will now play either Matteo Berrettini or Gael Monfils.
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Elsewhere in Melbourne, French Open champion Barbora Krejcikova has been knocked out by Madison Keys.
The American is into the last four of the women's singles after a 6-3, 6-2 victory.
Women's top seed and home favourite Ash Barty is in quarter-final action against Jessica Pegula shortly.