A few weeks ago he defeated Roger Federer in the fourth round of the Australian Open, and later advanced to the semifinals where he was ousted by Rafael Nadal:

But today Stefanos Tsitsipas lost to world number 56 Damir Dzumhur – who had not won a match this year – in the first round of the Rotterdam tournament. Dzumhur will meet Mikhail Kukushkin for a place in the quarter-finals against Gael Monfils. The Frenchman booked his place in the last eight with a 3-set win over Andreas Seppi.

In the other matches today, recent Sofia Open champion Daniil Medvedev, who turned 23 on Monday, defeated Jérémy Chardy, while Stan Wawrinka secured his place in the quarterfinals with a straight set win over Milos Raonic.

Photo credit: Andrew Robertson, Marianne Bevis

Read more:
– Rotterdam 2018: the title and the number one ranking for Roger Federer
– Rotterdam 2017: lucky 13 for Tsonga