This week Ruben (ATP-212) will be in action at the Challenger Tournament of Istanbul (Turkey, CH 90). As the tenth seed he has a bye the first round.
Ruben is seeded tenth at the hardcourt tournament in Turkey. He is has a bye in the first round and meets the Romanian Mircea-Alexandru Jecan (ATP-638) in the second round.
Together with Nenad Zimonjic (ATP D-875), Ruben (ATP D-244) also plays doubles. In the first round they compete against second seeds Rameez Junaid (ATP D-148) and Purav Raja (ATP D-83).