Norrie beaten by qualifier Tien in Acapulco openerBritain's Cameron Norrie lost to American qualifier Learner Tien in the first round of the Mexican Open.
Pretty crazy': Tien youngest since Nadal into Australian Open last 16Learner Tien becomes the youngest man to reach the Australian Open fourth round since Rafael Nadal, showcasing impressive skill and determination.
Fast Learner: Tien upsets Medvedev in MelbourneTeenager Learner Tien shocks the tennis world, becoming the youngest American man to reach the Australian Open's third round since 1990.
Norrie beaten by qualifier Tien in Acapulco openerBritain's Cameron Norrie lost to American qualifier Learner Tien in the first round of the Mexican Open.
Pretty crazy': Tien youngest since Nadal into Australian Open last 16Learner Tien becomes the youngest man to reach the Australian Open fourth round since Rafael Nadal, showcasing impressive skill and determination.
Fast Learner: Tien upsets Medvedev in MelbourneTeenager Learner Tien shocks the tennis world, becoming the youngest American man to reach the Australian Open's third round since 1990.