Tennis player, CiCi Bellis, has wowed fans by winning her first match at the US Open.
At 15 years 152 days old, Bellis is the youngest player to feature in a Grand Slam main draw for over nine years.
She beat 12th seed Dominika Cibulkova at the tournament 6-1 4-6 6-4.
She will now face Zarbia Dyas of Kazakhstan, the world number 48, in the second round, but she cannot collect the US$60,420 (£36,518) prize money on offer as she is an amateur.
After her win against Cibulkova she said:"I'm feeling amazing, I'm still speechless. I'm still in shock about that match."
"I went into the match thinking it was going to be such a great experience, but I never thought I would come out on top winning."