Top men's seed Jannik Sinner survived a stern test from Joao Fonseca on Tuesday to reach the Indian Wells quarter-finals.
Sinner, the world No. 2, was pushed hard by the 19-year-old Brazilian, losing the first set 3-6 before rallying to take the next two in tiebreaks and close out a 7-6(6) 7-6(4) win.
"I am very happy winning this match," Sinner said.
"Joao is an incredible talent. He was serving really well. I was trying to be as aggressive as possible, and that was the key to get through against the incredible talent."
The Italian will now meet the home favourite Learner Tien on Friday.
"I feel he is a very consistent player, and I am very happy to face him again. He has improved a lot since the last time we met," Sinner said of his American opponent.
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