The ATP 500 event in Rotterdam is underway with Jannik Sinner winning his first match as a Grand Slam champion.
The Italian defeated Botic Van De Zandschulp in straight sets as he moved into the second round.
There are also many big names competing in Rotterdam this week which will please tournament director Richard Krajicek.
However Krajicek also knows the difficulties of being tournament director with the possibility of big names going out early.
In an exclusive interview with Ubaldo Scanagatta, Krajicek spoke about past years where big names went out and also predicted that Jannik Sinner will win more Grand Slams and become a future world number one.
