The veteran Swede began working with Edmund last autumn and in their first grand slam together the 23-year-old has reached his maiden quarter-final.
He will take on third seed Grigor Dimitrov on Tuesday, and anyone who has not seen Edmund play for a few months may be taken aback by the Yorkshireman’s new demonstrative nature.
Naturally an introvert, Edmund is learning to embrace the gladiatorial nature of professional tennis, with impressive results.
Rosengren said: “I always believe it has to be fun out there, you have to enjoy the challenge, it’s not always about winning or losing. Sometimes you can be part of a great match but you lost.
“So we talked about it a lot, but at the same time he can’t (pump his fist) because I told him to. It has to come from his heart. I’m very happy to see that he’s happy out there and is not afraid of showing his emotions. I 100 per cent believe it helps him in his game.”
Rosengren’s emotions are always evident, with the 57-year-old – who is known as Fidde – a live-wire presence in the stands.
“I’ve been sitting there for 30 years,” said Rosengren, who has coached five top-10 players, including Swedes Robin Soderling and Magnus Norman.
“I’m always into it because I love my work. This is the party time. I have worked with so many great players and so many great characters and this makes my job so fantastic. It makes me jump off the bed every morning to have the privilege to work with different kinds of people.
“And if I can improve Kyle as a person also, then it’s almost even better because he has a life afterwards.”
Edmund made steady progress up the senior rankings after a fine junior career but trod water in his results in 2017 and split from previous coach Ryan Jones before Wimbledon.
He trialled Rosengren and British coach Mark Hilton, who had guided Dan Evans into the top 50 prior to his doping suspension, before deciding to hire them both.
The priority during the off-season was changing Edmund’s serve, which had not been as big a weapon as it should have been, and harnessing the power of his forehand.
Asked for his first observations of Edmund, Rosengren said: “That’s a a hell of a forehand, one of the best forehands out there, but at the same time you have to use the forehand right. For me it was a little bit like Kyle learning to take the right club out of the bag. Sometimes he used the driver on the putting green.
— #AusOpen (@AustralianOpen) January 21, 2018
“One main thing I saw was his service level was very up and down so we said we have to try to change the serve. I think everyone who has been watching him the last weeks can see how he raised his serve level. I’m very happy, and also that Kyle wanted to change.”
The other thing holding Edmund back was his failure to win close matches. In 2017, he played 25 deciding sets and won only seven of them. This season already he has won four out of five.
The victory over US Open finalist Kevin Anderson in round one in Melbourne, the biggest scalp of his career, leaps out but Rosengren has been even more impressed with his following three wins against Denis Istomin, Nikoloz Basilashvili and Andreas Seppi.
He said: “Everybody told me about this. You have to take away the pressure. I’ve been amazingly happy. He showed me so much courage and it’s so great to see. I tried to tell him, ‘stay on the court, enjoy the moment’, so he really feels like he’s a great player, because he is a great player.”
The one deciding set Edmund has lost this season came against Dimitrov in Brisbane, when he matched the Bulgarian before turning his ankle late on. Their other previous meeting in Washington last summer also went the distance.
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The Czech, seeded 19 and a two-time semi-finalist in Melbourne, put away the 25th seeded Italian 6-1, 6-4, 6-4 in 2hr 8min on Margaret Court Arena.
His reward will be yet another match against the great Roger Federer, his fifth in Melbourne and his 26th overall.
The Swiss 19-time Grand Slam champion holds all the aces with a one-sided 19-6 record and Berdych knows he faces another tough challenge if he is to progress in the year’s opening Grand Slam.
“If there is any plan or any key to success then I would like to know that,” he told reporters to the oft-asked question about his chances against Federer.
“I’m definitely going to go out there, try my best, try to play good tennis, and believe myself that I can do it.
“I did it in the past, and also, I did it in the slams, so I know how it is to beat him for the best-of-five sets.
“I’ll prepare the best I can… I’m on the best baseline that I can be.”@tomasberdych is ready to attack familiar territory after advancing to another quarterfinal at Melbourne Park. #AusOpen pic.twitter.com/Ea04DwjjDY
— #AusOpen (@AustralianOpen) January 22, 2018
“But obviously he’s an extremely tough opponent. I will just to go out there and swing at some balls.”
Berdych was in little trouble against the maverick Fognini, breaking the Italian’s serve six times, hitting 37 winners and offset with 20 unforced errors.
“I won in three sets, and that’s it. So if we’re going to go play tomorrow again, it would be probably a different match,” Berdych said.
“You just have to take it as it is. I was expecting a tough one and I was ready for it. I had a good game plan, and I was able to execute it all the way through the three sets, so I did it way better today.”
Berdych went into Monday’s match holding the record for the most number of Australian Open round of 16 appearances by a Czech man with 10 ahead of Ivan Lendl’s eight.
He said he was feeling much better after back issues flared late last year.
“I’m enjoying it a lot. I’m glad to be back in the shape that I am right now, which is finally healthy and that makes the difference,” he said.
— #AusOpen (@AustralianOpen) January 22, 2018
“I can play freely and I can have joy from the tennis. I can enjoy the time being on court. Yeah, the results are coming with that.”
He improved his record to 44-14 at the Australian Open, representing his most successful major tournament in terms of matches won and quarter-finals reached.
Berdych has reached the semi-finals twice in Melbourne, losing to Stan Wawrinka in 2014 and against Andy Murray the following year.
Angelique Kerber’s comeback victory over Hsieh Su-Wei in the Australian Open fourth round on Monday resembled an Olympic distance running race and the German is thrilled she crossed the finish line first.
The 32-year-old Hsieh looked like she was on her way to taking down another huge scalp in Melbourne, following her defeats of Garbine Muguruza and Agnieszka Radwanska earlier this fortnight, when she led Kerber by a set and was sending her across every inch of the court in a fierce battle.
In 2017, Kerber would have perhaps folded and lost that match in two. But as the German continues to remind us, this is 2018 and she has no intention of giving up. The ex-world No. 1 dug deep to complete a 4-6, 7-5, 6-2 success over the ever-tricky Hsieh and set-up a mouthwatering quarter-final against American Madison Keys.
“I think that was the key at the end that I really could run forever, and I was feeling that I was running from the first point until the last point. A lot of metres, actually,” said Kerber, a champion in Melbourne in 2016.
“I think she played amazing match and it’s always tricky to play against her. I’m really happy about how I was able to change the match and turn around and playing, then, good tennis again in important moments, especially in the third set.”
— Wim Fissette (@wimfissette) January 22, 2018
The Taiwanese Hsieh blasted 42 winners, pulling off creative shots that would have stumped anyone on court on Monday.
She calls it Su-Wei style.
“I don’t have a plan. Actually, my boyfriend was looking her game earlier this morning. I forgot to ask him what she play, so, I actually have no plan to go on the court. So I was try to still going my Su-Wei style, you know,” said the world No. 88, who plays double-handed on both sides.
“I call like to play freestyle. Like today I go on the court. If I don’t have a plan, then I do whatever I can. When the ball come, I decide at the last moment where to hit, so sometime the girls say, oh, I don’t know where she hit. But sometimes I don’t know where I hit, too,” she added with a smile.
Kerber is currently riding a nine-match winning streak — 13 if you count her singles wins from Hopman Cup in opening week. After a sensational 2016 that saw her win two majors, the 29-year-old suffered a breakdown in form last season, slipping from No. 1 to No. 22 in the world in 2017.
But a new and improved Kerber has appeared this season and she’s happy to put 2017 behind her.
“My expectations are always now to play every single match my best. I am not looking too much ahead,” said Kerber.
“I just try to play like 2016 a little bit, like not doing too many things to complicate it. Not thinking too much about everything. Just going there, doing my job, loving what I’m doing, and that’s it. I mean, I have a great time on and off court. And I enjoy Australia. So, yeah, I’m not thinking about expectation anymore, no.”
“It was a very good match from the first point – we both played a really high quality match.”
— #AusOpen (@AustralianOpen) January 22, 2018
She may not be piling the expectations on herself but she knows what to expect from her quarter-final opponent, Keys, who eased past eighth-seeded Caroline Garcia on Monday 6-3, 6-2 in 68 minutes.
Keys, a runner-up at the US Open last September, has been in brutal form this fortnight and will bring her power game to Kerber in their blockbuster showdown.
“I think she’s always tough to play. She obviously is a great tennis player. She’s been No. 1 in the world and won Slams,” Keys said of Kerber, who leads their head-to-head 6-1.
“I think she has an ability to cover the court and anticipate like really no one else does, so for me it’s having to play aggressive but also consistently aggressive, because I know she’s going to make three more balls than other girls may be able to get to.
“So it’s not feeling rushed and that I have to go for something crazy big on the first one and just really work the point.”