Stuttgart: Gauff survives Kudermetova in third-set tiebreak
No.5 seed Coco Gauff levelled her head-to-head against Veronika Kudermetova at 1-1 with a victory in the Porsche Tennis Grand Prix first round. Gauff led 3-0 in the second set but had to come from a break down in the third before prevailing in a deciding tiebreak.
