Federer marches on in Melbourne

24 January 2018 06:16:49 EST

Roger Federer will take on Korean sensation Hyeon Chung in the semi-finals of the Australian Open, having stormed past Tomas Berdych in the last eight.

Federer was in trouble early on as he fell a break of serve down in the first set, before hitting back to claim the opener on a tie-break - going on to complete a comprehensive 7-6 6-3 6-4 victory.

Chung is very talented and he's clearly got nothing to lose.

Roger Federer

And the Swiss maestro admitted that winning the first set from 5-2 behind was crucial to him seeing off Berdych once again, saying in his on-court interview: "I hung around, got a bit lucky, a bit angry, a frustrated.

"I'm happy I got out of that first set. It ended up being key to the match.

"My expectations are much different this year. I won a couple of Slams last year. Last time here, I hadn't won one for four years.

"Chung is very talented and he's clearly got nothing to lose. I will tell myself the same and we'll see what happens."

Earlier, Chung, who knocked six-time champion Novak Djokovic out in the fourth round, overcame Tennys Sandgren 6-4 7-6 6-3 to take his place in the last four.

Meanwhile, Chung was clear where he felt he has improved his game in recent times, having won the Next generation ATP Finals late last year and backed that up with an amazing run in Melbourne.

Having won 21 of 27 points at the net against Sandgren, he told reporters: "I'm just trying to work on playing on the net. In pre-season and all the time when I practice, I'm just trying to play more at the net.

"If I go to the net, I can save more energy."

Chung has never previously met Federer, who is 1/8 to reach the Australian Open final, 11/4 to defeat the Korean in four sets and 2/9 to win the title in Melbourne for a sixth time.

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