A training stint on football fields on the eve of his Wimbledon debut is the kickstart an untested Sebastian Korda attributes to finding his feet quick-smart on grass.

A handy dose of athletic pedigree, a breakout season and the belief that comes with that at 21 don’t hurt either.

While not a typical build-up to playing your first Tour-level match on the lawns of Halle, it proved more than sufficient as the brightest American prospect in years picked off victories over 2019 Wimbledon semi-finalist Roberto Bautista Agut and Kei Nishkori to reach the quarter-finals little more than a week ago.

It was only the entrée to a mighty impressive week for the Korda family’s fortunes on the grass.

Sister Nelly, only two years older than Sebastian, broke through for her maiden golf major at the LPGA Championship in Atlanta on Sunday and there was no one more proud than the youngest sibling.

“Yeah baby! Major champion and new #1 player in the world. Absolutely incredible!” Sebastian tweeted.

The middle child of an exceedingly adept trio, Nelly’s triumph equalled the feat of their dad Petr, the Czech tennis star who scissor-kicked his way – in post-match celebration only – to the 1998 Australian Open.

The 22-year-old Nelly did earn one up on her father, however, as victory elevated her to world No.1, one place higher than Petr ever managed.

Mum Regina Rajchrtova was also a top Czech tennis player who climbed as high as No.26 in the rankings.

She and eldest daughter Jessica – also a golf pro – were among the first to embrace Nelly in Atlanta on Sunday as Petr was on the other side of the Atlantic to help his son find his feet on the grass.

It is an increasingly familiar problem – though not a bad one to have – for an increasingly winning family.

When Sebastian reached his first Masters 1000 quarter-final in Miami in April, it delayed both parents flying to the opposite side of the US to watch his sisters contest their first major of the year.

“Having them here, it's a dream come true,” Sebastian said. “I always dreamed about playing around my family and playing the big matches and winning the tight matches.

“It's cool to share this experience with them. I wish my sisters were here, but they are doing their thing in California.”

Two-time Wimbledon champion Andy Murray acknowledged the family’s burgeoning achievements, following Nelly’s Atlanta win.

“What the Korda family is doing is incredible,” he tweeted.

In a searing six months, the Kordas have racked up trophies in a hurry.

Nelly’s major was her third title of the year, Jessica collected her sixth career title and first of the year in February, while Sebastian wasn’t to be outdone as he secured his maiden Tour title on clay in Parma last month to crack the top 50.

It made him and dad Petr just the third father-son duo to win an ATP title in the Open era.

Nelly’s major breakthrough may come as a welcome omen as 'Sebi' prepares to take on in-form Australian No.15 seed Alex de Minaur at the All England Club on Tuesday.

Following his Miami run in April, Korda said the siblings drove each other to greater heights.

“[Their success] definitely motivates me. My sister won a tournament the week before I won a tournament, so I was watching her and seeing how fired up she got,” Korda told ATPTour.com.

“It motivated me to play better and she is a big help. I think me winning a [Challenger] tournament and my older sister winning a tournament motivated my other sister, Nelly, to win her tournament. There is family competition, a little bit and we push each other.”

Throughout such early successes, the Korda siblings have remained grounded, seemingly at ease following in such well-credentialed sporting footsteps.

After her victory, Nelly spoke of the enormous support within the family and the motivation each of the trio shared.

“You don’t realise it until someone really talks about it because we’re always so in the zone,” Nelly said.

“We’re always just striving to achieve more, and for our family just to back each other through every situation. Seb is top 50 in the world. Man, a year ago he was outside 200. He’s playing at Wimbledon this year, it’s so surreal.”