Alex Livesey/Getty Images
The tennis world got their dream finals at the Australian Open, with Serena and Venus Williams set to face off in the women's final and Roger Federer facing Rafael Nadal in the men's final.
It is the most star-studded pair of finals ever, as the foursome have combined to win 60 Grand Slam events in their long and storied careers.
The group has also been winning Slams for a long time. Below we take a look back at what each player looked like when they won their first Grand Slam title.