Top seed Kiki Bertens has cruised into the second round of Claro Colsanitas Open with a 6-4 6-1 win over Serbia's Nina Stojanovic.
The Dutch player needed only an hour and three minutes to progress, breaking her opponents serve seven times in the Bogota contest.
Former French Open winner Francesca Schiavone eliminated sixth seed Patricia Maria Tig 6-3 6-4.
The 36-year-old Italian, playing in Colombia as a wildcard, overcame the Romanian in an hour and 25 minutes.
Second seed Katerina Siniakova, Poland's Magda Linette and Italian Sara Errani were among the other players to progress on day two, but Greek eighth seed Maria Sakkari crashed out 6-3 7-6 (8-6) to Silvia Soler-Espinosa of Spain.
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