Supporters of Joao Fonseca of Brazil react during his first round match against Andrey Rublev of Russia at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Joao Fonseca of Brazil plays a forehand return to Andrey Rublev of Russia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Andrey Rublev of Russia reacts during his first round match against Joao Fonseca of Brazil at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Joao Fonseca of Brazil celebrates after defeating Andrey Rublev of Russia in their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Joao Fonseca of Brazil takes a selfie with fans after defeating Andrey Rublev of Russia in their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Joao Fonseca of Brazil plays a forehand return to Andrey Rublev of Russia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Joao Fonseca of Brazil celebrates after defeating Andrey Rublev of Russia in their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)

Joao Fonseca of Brazil is congratulated by Andrey Rublev, right, of Russia following their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2025. (AP Photo/Asanka Brendon Ratnayake)