The Russian beat Italy's Roberta Vinci 6-2, 7-6 in the Toronto Cup on Tuesday.
Unseeded Safarova will take on Russian Nadia Petrova, who beat holder Amelie Mauresmo of France in the other semi-final.
Jelena Jankovic beat Czech Nicole Vaidisova while Ana Ivanovic upset 2006 runner-up Svetlana Kuznetsova.
Roger Federer had picked out the Russian as his favourite player on the women's tour.
Maria Sharapova showed there was no room for sentiment on Wednesday when she led a trio of Russian seeds into the second round of the French Open.
Jelena Jankovic continued her impressive preparation for the French Open when she beat world number three Svetlana Kuznetsova 7-5 6-1 in the final of the Italian Open on Sunday.
The second seed beat Yuliana Fedak of the Ukraine at the Italian Open.
Ana Ivanovic fought back from a set to beat Svetlana Kuznetsova 3-6, 6-4, 7-6 in the final of the German Open.
She set up a showdown against Serbian 12th seed Ana Ivanovic later in the day.
World number one Justine Henin of Belgium fought back from the brink of defeat to reach the semi-finals of the German Open today, beating fifth-seeded Serbian Jelena Jankovic.
The third seeded Russian rallied to beat the American to reach the semi-finals of the Warsaw Cup.
Svetlana Kuznetsova powered Russia into the Fed Cup semi-finals by thrashing Anabel Medina Garrigues 6-3 4-6 6-0 in the first reverse singles on Sunday.
The Russian beat unseeded Katarina Srebotnik of Slovenia in the semi-finals of the Zurich Open.
The Slovak won her first title in five years when she beat Svetlana Kuznetsova in the Pacific Life Open final.
She will play number 14 seed Daniela Hantuchova of Slovakia, who wore down number 12 Li Na of China 7-5 4-6 6-1.
Second seed Svetlana Kuznetsova beat Czech teenager Nicole Vaidisova 4-6 6-3 6-4 to move into the Pacific Life Open semi-finals on Thursday.
Top seed Justine Henin rallied from a set down to beat Jelena Jankovic and reach the final of the Qatar Open.
Justine Henin knocked out Swiss Patty Schnyder 3-6, 6-4, 7-5 to reach the Qatar Open semi-finals.
Amelie Mauresmo reached the Dubai Open final after Serbia's Jelena Jankovic retired through injury when trailing 6-2 on Friday.
Justine Henin, playing her first match of the year, had to come back from a set down to beat Frenchwoman Emilie Loit at the Paris Open on Wednesday.
The Indian will take on seventh seed Elena Dementieva in the first round at Wimbledon
Sifan Hassan of the Netherlands broke the 23-year-old women's mile world record on Friday when she clocked four minutes 12.33 seconds in a race dedicated to former American runner Gabe Grunewald, who died from cancer last month at the age of 32.
The Belgian advanced to the German Open semi-finals with a 6-4, 7-6 victory over Russian Svetlana Kuznetsova.
Kuznetsova won the battle of Russians to secure her first WTA trophy since triumphing in Bali in September 2004.
Russian Svetlana Kuznetsova registered a 6-4, 6-0 victory to win the China Open title.
The defending women's champion was dumped out of the U.S. Open by fellow-Russian Ekaterina Bychkova.
Sixth seeded Svetlana Kuznetsova was beaten by Serbian 19th seed Jelena Jankovic in the fourth round of the US Open.
The two will meet in the semi-final of the Dubai Open on Friday
Serena, a six-times champion in New York who is seeded 17th, will start her campaign against Polish world number 60 Magda Linette and could face Venus in the third round before a possible fourth-round showdown with Romanian top seed Halep.
In another quarter-final at the Dubai Open, Russian third seed Maria Sharapova beat Switzerland's Martina Hingis.
The Swiss beat Russian Svetlana Kuznetsova in the 7-6, 6-3 in their quarter-final match the Rogers Cup.
Sania Mirza lost her women's singles and doubles matches at the Australia Open on Thursday.
The Belgian fifth seed thrashed Svetlana Kuznetsova 6-3, 6-1 in the semi-finals of the Sydney International.\n
Australian Open champion Marat Safin withdrew from the Hopman Cup in Perth due to a long-standing knee injury
Li Na upset Svetlana Kuznetsova 3-6, 6-2, 6-3 to become the first Chinese player to reach the singles fourth round at Wimbledon