Top seed Daniela Hantuchova reached the quarter-finals of the Bell Challenge in Quebec after a hard-fought win over Melinda Czink on ThursdayHantuchova lost the opening set on a tie-break but hit back to claim a 6-7 (4/7) 6-4 6-3 victory.The Slovakian looked to be racing through the final set when she charged into a 5-1 lead and served for the match at 5-2, but lost her serve and had to break Czink again - the 11th break in the match - to eventually close out the win in two hours and 36 minutes.Hantuchova will face Marina Erakovic in the last eight after the New Zealander beat seventh seed Irina Falconi 6-3 2-6 6-2And second seed Lucie Safarova also crashed out, losing 7-6 (7/1) 7-5 to fellow Czech player Andrea Hlavackova.Hlavackova will face another compatriot in the quarter-finals after sixth seed Barbora Zahlavova Strycova saw off Croatia\'s Mirjana Lucic 2-6 6-1 6-3.