American Learner Tien kept the teenage revolution going at the Australian Open by reaching the fourth round on Saturday after 38-year-old Gael Monfils had made a big statement for the old guard with a stunning win over fourth seed Taylor Fritz.

Gael Monfils has joined Roger Federer as the only men to reach the Australian Open’s fourth round at age 38 or older since the tournament field expanded to 128 players in 1988

Gael Monfils rolls back the years to oust fourth seed Taylor Fritz and reach the Australian Open fourth round.