World number one Simona Halep fought back from a set down to defeat France's Oceane Dodin in the second round of the Miami Open.
The 26-year-old Romanian beat the world number 98 3-6 6-3 7-6.
Halep received treatment on her neck twice during the match and eventually rallied to win in two hours and seven minutes.
She will face Agnieszka Radwanska next after the Pole beat Alison Van Uytvanck of Belgium 6-3 7-6 (7-4).
German 10th seed Angelique Kerber breezed past Sweden's Johanna Larsson 6-2 6-2, while Czech Karolina Pliskova beat Russia's Ekaterina Makarova 7-5 7-5.