Tennis - French Open - Roland Garros, Paris, France - June 7, 2017 Croatia's Marin Cilic in action during his quarter final match against Switzerland's Stan Wawrinka Reuters / Pascal Rossignol
(Reuters) - Marin Cilic launched his grasscourt campaign when he survived a tricky opener against Janko Tipsarevic at the Den Bosch Open on Thursday, blasting down 17 aces in a 6-7(6) 6-2 6-4 victory.
Fellow Croatian Ivo Karlovic also used his serve to great effect, losing only eight points on his delivery in a 6-4 6-1 victory over wildcard Stefan Kozlov.
