Great Britain's Francesca Jones continued her eye-catching run in Colombia by strolling into the quarter-finals of the Copa Colsanitas in Bogota.
The world number 817 - who knocked out third seed Nuria Parrizas-Diaz in round one - clinched another straight-sets win over Canada's Carol Zhao 6-2 6-1.
Unfazed by taking on another player ranked considerably higher than her in the WTA charts - 643 places to be exact - Jones was broken in the first game of the match but responded by winning the next three on the bounce.
The pair traded another two breaks before Jones came through a tense eighth game to clinch the first set, despite racking up the double faults as she did in her triumph over Parrizas-Diaz.
The writing was on the wall for Zhao when Jones won the first four games of the second set, although the world number 174 did manage to earn one break back to offer herself a glimmer of hope.
However, it was a fruitless endeavour against Jones, who converted her second match point to set up a last-eight tie with Brazil's Laura Pigossi or Serbia's Natalija Stevanovic.
Ben Knapton
