Overview

• Alex Michelsen, 20, and Learner Tien, 19, have advanced to the fourth round of the Australian Open, marking their best Grand Slam performances to date.
• The Southern California natives have been close friends for over a decade, training together extensively during the offseason under coach Eric Diaz.
• Michelsen secured impressive wins over Stefanos Tsitsipas and Karen Khachanov, while Tien defeated Daniil Medvedev and Corentin Moutet to reach this stage.
• Their success makes them the first American men aged 20 or younger to reach the third round of a Grand Slam since 2003, joining the ranks of Andy Roddick and Robby Ginepri.
• Coach Eric Diaz has been pivotal in their development, providing mentorship and shaping their games at a Tier 1 academy in California.