The 33-year-old Pole, ranked No. 34 in the world by the Women’s Tennis Association (WTA), upset the third-seeded American 6-4, 6-4 in the round of 16 on Monday.
The win marked her first career victory over a top-10 opponent, Polish state news agency PAP reported.
Linette will next face sixth-seeded Jasmine Paolini of Italy for a spot in the semifinals.
Meanwhile, Poland’s world No. 2 Iga Świątek is set to play Ukraine's Elina Svitolina for a place in the last eight.
The 2025 Miami Open runs until March 30.
(gs)
Source: IAR, PAP