Teen Tien reaches fourth round as Monfils stops Fritz

MELBOURNE :American Learner Tien kept the teenage revolution going at the Australian Open by reaching the last 16 on Saturday after 38-year-old Gael Monfils had made a statement for the older player with a stunning upset of fourth seed Taylor Fritz.

Tien, 19, took out hobbling Frenchman Corentin Moutet 7-6(10) 6-3 6-3 to continue his stunning run on his Melbourne Park debut and become the youngest man to reach the fourth round at the Australian Open since Rafa Nadal in 2005.

The American ousted fifth seed Daniil Medvedev in the early hours of Friday morning but showed no signs of wear and tear from that five-set epic as he set up a clash against Lorenzo Sonego.

"It feels great, obviously," said the Californian. "This exceeded my expectations coming into this week, you expect to win every match but to be in the second week is amazing."

Italian Sonego beat Fabian Marozsan 6-7(3) 7-6(6) 6-1 6-2 to book his spot in the fourth round, having ended the campaign of Brazilian 18-year-old Joao Fonseca in the second round.

Tien, Fonseca and 19-year-old Czech Jakub Mensik tore up the form guide by dumping top 10 seeds out in the first week, heralding the rise of a new generation to threaten the dominance of early twentysomethings Carlos Alcaraz and Jannik Sinner.

Novak Djokovic, at 37, is still flying the flag for the golden generation in the fourth round and Frenchman Monfils joined him by coming from a set down to beat Fritz 3-6 7-5 7-6(1) 6-4, celebrating with a jig.

"I keep playing for those matches," said Monfils. "Play big players, big stadiums, good crowd, good energy. When you're 38-years-old, that's what I want. I had it. I was very fortunate to win it."

There was no glimmer of an upset earlier when women's second seed Iga