US tennis player and 11th seed Jessica Pegula emerged victorious in her third round match against Tamara Zidansek.
US tennis player and ninth seed Danielle Collins said her goodbyes as well after losing to compatriot Shelby Rogers.
The 20-year-old Pole is in the form of her life as she has won 28 consecutive matches so far in the 2022 season.
Swiatek was forced to drop from the Madrid Open in April due to a shoulder ailment, but she was at her best against Sabalenka on Saturday.
The reigning Madrid Open champion went a set down in the match but came back from what seemed like a dire situation to move on to the semis.
Seventh seed Danielle Collins was in high spirits after defeating former world no. 1 Simona Halep but her joy was cut short by the unseeded Amanda Anisimova.
The biggest shock of the day perhaps was the elimination of sixth seed Karolina Pliskova against unseeded Swiss player Jil Teichmann.
Swiatek gave Romania's Andreea Prisacariu a double bagle to give Poland an insurmountable 3-0 lead in the tie
Iga Swiatek defeated Naomi Osaka in the Miami Open final on Saturday to win her third WTA 1000 title in a row.
Swiatek became the youngest woman in history to achieve the Sunshine Double, winning the Indian Wells and Miami Open in the same season.