World number one Iga Swiatek reached the quarterfinals of the WTA500 Stuttgart event with a straight-sets win over Zheng Qinwen on Thursday on her return from injury.
The Pole won 6-1, 6-4 with a dominant first set putting her on course for victory in just under 90 minutes at the clay-court tournament.
After Zheng broke to lock the second set at 4-4, the two-time French Open winner broke back immediately and then served out the match.
