Britain's Cameron Norrie booked a third-round match with Rafael Nadal at the Australian Open after beating Roman Safiullin in four sets.
The 25-year-old, who is ranked at number 71 in the world, recovered from a set down to win 3-6 7-5 6-3 7-6(3) - with the match finishing on Margaret Court Arena after being halted due to rain and bad light.
His Russian opponent, a qualifier for the main draw at Melbourne Park, had started the better by taking the opening set in impressive fashion.
Federer overcomes spirited challenge from Britain's Norrie to win through
But Norrie, who battled past his compatriot Dan Evans in the opening round, fought back strongly and took the next three sets, surviving a slight wobble when serving for the fourth set to win via a tie-breaker.
It is the second time he has reached the third round of the Grand Slam, having got to the same point at the US Open last year.
Highlights: Norrie sees off Safiullin to book Nadal showdown
The British number three says the match changed when it moved to one of the big show courts, in front of a rowdy set of spectators.
"Playing out on Court 8 and then coming out here, on an indoor court, almost half capacity crowd, just using the atmosphere - I definitely used it to my advantage and it was definitely a different match after that, I think we both raised our level", he said.
Next up is a meeting with 20-time Grand Slam champion Nadal, and though he knew last week that could be a possibility, Norrie insists he did not look that far ahead.
"For someone like me, not really, I was playing a tough first round and then managed to get through that", he said.
I saw it yesterday and I saw he was right next to me - I've never played him before so it'll be definitely a great match and a great experience for me and I can't wait to get out there and show him what I've got.
Norrie and Safiullin have match delayed due to rain
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