The eyes of the world will be on teen sensations Emma Raducanu and Leylah Fernandez when they go toe-to-toe in the US Open final on Saturday.
The young superstars have the world at their feet and if they're looking for some pearls of wisdom before the big day, they could do far worse than giving Serena Williams or Martina Hingis a call.
The last time two teenagers competed in the women's US Open final was back in 1999 when Hingis and Williams were at the start of their promising careers.
Serena Williams (right) defeated Martina Hingis (left) for the US Open women's title the last time two teenagers competed for the prize at Flushing Meadows back in 1999
Emma Raducanu (left) and Leylah Fernandez are following in Hingis and Williams' footsteps
Hingis was 18 and already had a singles Grand Slam title in the bag having won the Australian Open aged 16.
Williams was in her second year as a pro but was clearly destined for greatness and was seeking revenge after her sister, Venus, had been knocked out by Hingis in the semi-finals.
It proved to be a historic and emotional day with Williams becoming the first black woman to win a Grand Slam since Althea Gibson in 1958.
She downed Hingis 6-3, 7-6 (7-4) with a blistering show of attacking tennis, not dissimilar to the clean ball striking Raducanu has showcased so far, although the Williams serve was more of a thunderous weapon.
'Those serves were, like, smacking,' Hingis said afterwards.
There were intense baseline rallies from the young guns but it was Williams with ice in her veins in the big moments, cashing in on the £540,000 prize money.
Williams roared to triumph and won her first Grand Slam title at the age of 17 at the US Open
And Williams could hardly contain her excitement after securing the straight sets win.
'It's just too exciting to compute right now,' she gushed.
'It's really amazing for me to even have an opportunity to be compared to a player as great as Althea Gibson.
'One of her best friends told me she wanted to see another African American win a slam before her time is up. I'm so excited I had a chance to accomplish that while she's still alive.'
Then moments after her triumph, there was a special call of congratulations from Bill Clinton,
