The 19-year-old Russian needed just 56 minutes to dispatch Shnaider 6-2, 6-1, demonstrating her dominance in a match that further underlined her growing status among the leading players in women's tennis.
Already assured of finishing top of her group and qualifying for the last four, Andreeva maintained her excellent form against Shnaider, who entered the competition as a late replacement for the unwell Karolina Muchova.
Ranked third in the world, Andreeva will now face fifth-ranked American Jessica Pegula in what promises to be an intriguing semifinal encounter, particularly given the controversy that emerged between the two players ahead of the tournament.
The upcoming meeting will be their first on court, coming just a week after Pegula was overheard describing the young Russian as a “diva” during a practice-court conversation with her coach.
The comments were captured by microphones installed to record general court sounds for a WTA livestream, prompting an apology from the women's tennis governing body over the incident.
Pegula, who said she had not realised the microphones could pick up her private conversation, subsequently apologised and maintained that Andreeva had not taken the remark personally.
Explaining the Russian's reaction, Pegula said: “She was totally fine, and she was like ‘I’m a diva.’”
“Like she embraces it, and so it was kind of funny,” the American added.
Despite the apology and efforts by both players to play down the situation, Pegula acknowledged that the incident would inevitably attract attention ahead of their semifinal clash.
“The storyline writes itself,” she said.
“I think it maybe gets fans interested … whatever works. We’re all good, but if it gets people to watch I think it’s fine.”
The encounter now offers both players an opportunity to move beyond the off-court exchange and settle matters through their performances on the court, with a place in the WTA Finals championship match at stake.