The World No. 17 Ghosal played out of his skin to stretch the unseeded Finn in a tough pre-quarterfinal that the Indian won 3-2 under considerable pressure. (Agencies)
"For me it's a massive achievement. It's the first time I've made it to the quarter-finals of the World Championship and it's huge to be in there in the last eight with the world's best players," a delighted Ghosal said.
"I've made it one step further than I have before so I'm going to enjoy it - but I will be coming back tomorrow and hopefully I can play another good game and give myself a chance of progressing even further," he added.
The 27-year-old Kolkata-born was down 0-2 against his lesser-known opponent but the Leeds-based player showed his class when it mattered the most and upped the ante in the second half of the match to close out the issue 5-11 8-11 11-8 11-4 11-2.
"Henrik played unbelievable squash in the first two games. Actually he was match ball down in his first round match and came back to win it - that shows how strong he is mentally," said Ghosal.
"He really caught me off guard with the quality of his shots. I had to dig in super super super deep to grind out of that one, said Ghosal, who is widely regarded as one of the fastest players in the Tour," he added.
The eventual scoreline hardly did justice to the incredible performance from the Indian in the first two games. Ghosal matched his opponent stroke for stroke in the third game with the players feeling each other out.
"The World Championship is a massive competition and a very prestigious title. It's a title every squash player dreams of winning and I'm delighted to go one step closer towards that dream," Ghosal said.
The Indian played a tight straight game, using his experience and superior craft to retrieve Mustonen's attacking strokes and adapted to the conditions well to seal the game in 66 minutes.
"There was a little bit of pressure in my head thinking of creating history. And maybe that restricted me a little bit," said Ghosal.
"Henrik played well in the first two games and he deserved to be two-nil up. Fortunately, I was able to change things just in time and won the match," he added. Mustonen had his nose ahead in the third game also when he made a comeback from 3-6 to level the scoreline at 6-6 and then surge ahead 7-6.
But Ghosal managed to step up several levels and showed excellent ball control, coupled with fine retrieving skills, to turn the match around in his favour. Ghosal finished the decider in style, taking eight points in a row from 3-2 and lending an uppercut punch in celebration. He next faces Ramy Ashour, the top-seeded defending champion from Egypt, who beat Australia's Cameron Pilley 9-11, 11-8, 11-4,12-10.
Ghosal feels that his success will do a world of good to the promotion of the sport in the country. He had made history last year by becoming the first Indian ever to make the last 16 of the World Championship and took a step further today.
"In my view, I'm not only doing it for me, but it's also for India - for all those players that are coming after me. If my results can help and popularise the sport, then the impetus will carry on, and maybe one day, we'll have 15 Indian players in the main draw of the World Championships," said Ghosal.
The World No. 17 Ghosal played out of his skin to stretch the unseeded Finn in a tough pre-quarterfinal that the Indian won 3-2 under considerable pressure.