The walkover sends second seed Li Na into a contest against the winner from Daniela Hantuchova and American Madison Keys.
Miami, USA: China's Li Na reached the third round of the Miami Masters on Friday after her intended opponent Alisa Kleybanova withdrew with illness before their match.
The walkover sends the second seed into a contest against the winner from Daniela Hantuchova and American Madison Keys.
Romanian sixth seed Simona Halep also pulled out, citing a toe injury. She will be replaced in the draw by Czech Jana Cepelova, who will face Australian Casey Dellacqua in the second round.