Even though Greece's young tennis star had to switch his shoe in the third set of his first-round match at the Erste Bank Open, Tsitsipas still managed to defeat German Jan-Lennard Struff.
The fifth seed beat Struff 6-7(3), 6-3, 6-4 in one hour and 52 minutes.
"I'm happy that I was relaxed and in that kind of state of mind and mood. I think it helped overall my performance today," Tsitsipas said after the match.
"I think Jan played good today and we were both serving well, [playing well] from the baseline. I wouldn't say there were many rallies...It was a demonstration of serves and I managed to overcome the difficulties that were presented in his service games," he added.
Tsitsipas meet Bulgarian Grigor Dimitrov in the next round.
Earlier this week, Stefanos took a trip down the memory lane, posting a photo of himself with his younger brother Petros, with a heartfelt caption.