The world No. 10 launched his clothing brand in 2023, with the inaugural drop raising more than $150,000 for children with critical health needs.

MELBOURNE, Jan 14 (Reuters) - Brazilian teenager Joao Fonseca launched his Grand Slam career in spectacular fashion as the qualifier took down Russian ninth seed Andrey Rublev 7-6(1) 6-3 7-6(5 ...