Veronica Cepede Royg needed five match points .
Veronica Cepede Royg eventually prevailed over former World No. 9 Andrea Petkovic to reach the quarterfinals of the Hobart International .
Veronica Cepede Royg needed five match points but eventually prevailed over former World No. 9 Andrea Petkovic to reach the quarterfinals of the Hobart International .