Iga Swiatek of Poland greets spectators after winning against Victoria Azarenka of Belarus during their Quarter-Final Women's Singles tennis match at the Qatar WTA Open at Khalifa International Tennis and Squash Complex in Doha on February 15, 2024. Photo: AFP
Pliskova won the Cluj tournament in Romania last weekend but is suffering from a lower back injury, the WTA explained.
Swiatek will face either No. 3 seed Elena Rybakina or unseeded Anastasia Pavlyuchenkova in the final on Sunday.
The 22-year-old Pole is aiming for a third consecutive title in Doha.
Pliskova had won her last nine matches, but her first three matches in Qatar all went to a third set and she needed two tiebreaks to beat Naomi Osaka in two sets in the quarterfinals.
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