Stefanos has the objective to break in the top10, and that may well happen in February since after Sofia, he is scheduled to play in Rotterdam, Marseille, and Dubai. The Greek lost in the quarters in Sofia to Gael Monfils in straight sets.
Currently ranked no. 52, Damir is having a horrible 2019 with a grim 0-2 win-loss record after he lost in the 1st round in Doha at the hands of Novak Djokovic (6-1 6-2) and in the opener in Melbourne where he was defeated by Gael Monfils (6-0 6-4 6-0).
Head to head Stefanos Tsitsipas vs. Damir Dzumhur
Stefanos and Damir played each other 3 times. The head to head is 2-1 for Dzumhur.