Overview
- No. 3 Alexander Zverev beat Tien in the Australian Open quarterfinals 6-3, 6-7(5), 6-1, 7-6(3) to reach his 10th Grand Slam semifinal.
- Tien advanced to the last eight by dismantling former world No. 1 Daniil Medvedev 6-4, 6-0, 6-3.
- At 20, he was the youngest men’s quarterfinalist in Melbourne since 2015 and the youngest American to reach a maiden major quarterfinal since 2001.
- Zverev and others credited coach Michael Chang for Tien’s improved baseline patterns and return positioning, as Tien targets gains in serving and physicality.
- The run follows a 2025 surge featuring an ATP title in Metz, a Beijing final, the NextGen crown, and a provisional climb to about No. 24 with career earnings above $3 million.