Earlier in the tournament, the 194th-ranked teen also ousted Leylah Fernandez and Beatriz Haddad Maia on her way to the fourth round.
The 16-year-old broke Linette a number of times and soared through the win without dropping a set. She entered the Madrid Open as a wildcard and became just the third 15-year-old to win a main draw match in the WTA after she beat Fernandez.
Just last January, the teen finished runner-up at the Junior Australian Open. She will next go up against a giant in the rankings Aryna Sabalenka.
Sabalenka is coming off a win against Camila Osorio 6-4, 7-5.
“I didn’t expect to be here and playing Sabalenka in the Round of 16,” Andreeva said after her match.
“I’m not really surprised with my level, because I know the way I can play on the court … but of course, I didn’t expect to be here and go this far.”
Speaking of Linette, she said:
“She’s an amazing player because she plays so consistent.“She doesn’t miss a lot. I tried to just play my game. I just tried to cut the rhythm a lot. … I tried to play aggressive and I made it through.”She is also looking forward to going up against Sabalenka.
“I have nothing to lose,” Andreeva said.
“I just have to go there and show the best tennis I can. There is no pressure at all for me. There is some pressure on her, I think, because she’s going to play a 16-year-old girl. Most probably, we will play in some stadium, so I’m excited to do that.”