The semi-finalist in this year Australian Open Stefanos Tsitsipas will star for the first time at Sofia Open on Thursday. He will play his second round match on the Centre court of “Arena Armeec” late in the evening against Jan-Lennard Shtruff (GER).
Just before that on the same court, Gael Monfils will fight Mikhail Kukushkin for a place in the quarters.
The whole order of play:
CENTER COURT start 12:00 noon
[Q] D. Brands (GER) vs M. Klizan (SVK)
- Copil (ROU) vs  F. Verdasco (ESP)
- Haase (NED) vs  D. Medvedev (RUS)
Not Before 6:00 pm
 G. Monfils (FRA) vs M. Kukushkin (KAZ)
- Struff (GER) vs  S. Tsitsipas (GRE)
COURT 1 start 12:00 noon
[Q] Y. Maden (GER) vs M. Fucsovics (HUN)
- Molchanov (UKR) / I. Zelenay (SVK) vs C. Hsieh (TPE) / C. Rungkat (INA)
- Mektic (CRO) / J. Melzer (AUT) or S. Gonzalez (MEX) / A. Qureshi (PAK) vs S. Bolelli (ITA) / A. Seppi (ITA)
After Suitable Rest – J. Nedunchezhiyan (IND) / P. Raja (IND) or R. Galloway (USA) / N. Lammons (USA) vs  R. Haase (NED) / M. Middelkoop (NED)