Top seed and world number one Simona Halep defeated Angelique Kerber 6-7 (2/7), 6-3, 6-2 to reach her third French Open semi-final on Wednesday.
Muguruza had lost all three previous times she faced Sharapova, whose five Grand Slam titles include two at Roland Garros.
Halep is aware she can not afford another poor start on Thursday against 24-year-old Muguruza who has been tested just once in Paris and that was in the first round where fellow former victor Svetlana Kuznetsova pushed her to a tiebreak in the first set.
"I am very pleased to be in another final in Paris", said Muguruza who has yet to drop a set in the tournament and claimed her first win over Sharapova in 4 meetings.
Against Kerber, Halep stumbled out of the gate, dropping the first set in a tiebreaker. While Sharapova wasn't prominent in the conversation to add a third title to her résumé, she looked as if she belonged in the second week, which ended with rising commotion around a scheduled fourth-round clash against arch-nemesis Serena Williams.
'And I think we played many matches. 'I think there is a lot of autobiographies out in the world, especially in the sporting world, that don't necessarily speak about whether they were rivals or someone they competed against. I tried to do too much. "I think that's a load of crap, but, you know, it's just me".
The Romanian broke at the start of the second set and then held for 6-3 as Kerber dropped her serve again in the ninth game.
Rafael Nadal has won 37 completed sets in a row at the French Open heading into his quarterfinal against Diego Schwartzman. Sharapova was the French Open champion in 2012 and 2014; Muguruza took the trophy in 2016.
A Grand Slam win in Paris would bring redemption for Halep, who lost in the 2017 French Open final against Jelena Ostapenko after leading by a set and three games.
Sharapova was due to meet the 23-time Grand Slam champion on Monday in the fourth round, but her opponent pulled out with an arm injury. She went on to commit only 16 errors over the course of the next two, which was the difference in getting the win.
"I don't think you have to be mean in order to win matches".
The 2012 and 2014 Paris champion, who missed the 2016 tournament because of a doping ban and past year when she was refused a wild card, was broken six times, committed 27 unforced errors and won just five points on her own serve in the second set. The record for the clay-court Grand Slam tournament was Bjorn Borg's 41-set winning streak from 1978-81.
She missed several chances to go 4-1 ahead but she remained able to built the points more convincingly.
Guatemala's National Institute of Forensic Sciences has raised the death toll from Sunday's eruption of the Volcano of Fire to 75. Sergio Cabanas, director of the disaster agency, said Tuesday night at a news conference that 192 people were listed as missing.
The Instagram picture shows Kate and David standing together, and the caption reads: "Fuzzy picture but I love it. The fashion world lost a bright designer in Kate Spade this week, and it's still reeling.
Conred spokesman David de Leon said the volcano first erupted around midday on Sunday, billowing smoke and ash miles into the sky. Left, rescue workers run for cover as the volcano blows more clouds of ash in the village of El Rodeo in Escuintla, Guatemala .
The tools will be baked into iOS 12 and will let people limit how much they use certain distracting apps, among other features . Parents will be able to set limits for time their children set in apps and get detailed reports regarding which apps are used.
Mesmerizing video captured by a US Geological Survey helicopter shows the shallow bay rapidly filling in with cooling lava. The lava pushed into beach lots in Kapoho, which has about 350 homes and Vacationland, which has about 150.
Out of the box, Beam comes with Amazon Alexa in the US, UK, Germany, Canada, Australia, New Zealand and soon, in France. The folks at Sonos are touting the new Sonos Beam, a $399 addition to its system of home sound equipment.
The Brazil global has agreed a five-year contract and will join up with his new team-mates after the World Cup . Fred started his youth career at Atletico Mineiro in Brazil , before leaving in 2009 to play for Porto Alegre.
She awaits the victor of Muguruza-Tsurenko. "She's a true champion and she'll work hard and she'll want to get back". Williams hadn't played in a Grand Slam tournament in 16 months, after giving birth to her daughter last September.
Firefighters wearing breathing apparatus searched the structure to see if anyone still was inside, the fire brigade said . Roads between Scotch Corner and Hyde Park Corner have been closed while emergency services deal with the blaze.
The other players will never admit it publicly but some have already told me that they ended up hating him. Touré, now aged 35, became increasingly marginalised as City claimed the Premier League title last season.
Why Kendall Jenner and Anwar Hadid's Hookup Isn't Surprising
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After 24 days out of sight, Melania Trump finally reappears
After that reception, Mrs Trump put out a tweet that said she and Trump "were honoured to pay tribute to our fallen heroes". The president also said: " Melania had a little problem a couple weeks ago, but she wouldn't miss this for anything".