Alcaraz tips 'incredible' Fonseca to be among world's best 'soon'

The fearless 18-year-old Brazilian qualifier stunned ninth seed Andrey Rublev in straight sets on his Grand Slam debut on Tuesday. Fonseca last month became the second-youngest champion of the NextGen ATP tournament since current world number one Jannik Sinner claimed the title, also aged 18, five years ago. Alcaraz, himself only 21, was suitably impressed. "What can I say about it? Just incredible. I mean, the way he played his first Grand Slam match against his first top-10 player, it's unbelievable,"...