At the US Open, Gauff advances with a victory of 6-2, 6-3.

Facing Serena Williams would be a "lifetime dream."

At the US Open, Gauff advances with a victory of 6-2, 6-3.

Zhang Shuai of China will take against an American teenager on Sunday.

Gauff, who reached the French Open final and has won 11 of her previous 13 Grand Slam singles matches

When Gauff competes against Zhang Shuai of China on Sunday, she will be the favorite.

Gauff made a shaky start and lost the first game, but she soon collected herself, came back, and sent an ace up the tee for a 4-1 lead she would not give up.

The 12th seed kept her composure in the second set as she deflected powerful groundstrokes from previous finalist Keys and won on the other player's 22nd unforced mistake.

The French Open champion, who increased her record in Grand Slam tournaments to 11-3 this year, said it was an honor to open up for Williams at the event for a record-tying third time and that she will once more be fixated on her idol's match.

“It’s been amazing. I haven’t missed it,” Gauff said.