Agnieszka Radwanska survives Miami Masters scare

Agnieszka Radwanska has survived a scare in the third round of the Miami Masters with a three-set victory over Magdalena Rybarikova.

The defending champion won an error-strewn opening set 7-5 in the tie-break before she was broken four times in the second to lose it 6-2.

However, the Pole came out on top 6-3 in the decider to scrape into round four.

Radwanska will now face Venus Williams or Sloane Stephens for a quarter-final spot.