Dominic Thiem and Alexander Zverev's contrasting sayings on the kind of balls (Tecnifibre) used in Rotterdam was a popular topic in other players' press conferences. Should they use one ball the entire year? Both Tomas Berdych and Marin Cilic don't think that's the best thing to do.
'It's not easy. There are a lot of things around it; sponsors, things like that,' the Czech player said. 'How do you pick one ball that would suit everybody. It's very difficult. I do think there shouldn't be many balls changes during the year, which they are trying to do.
In the calendar you find weeks when you play with one type of ball leading up to a Grand Slam tournament and all of sudden you have to play with a different ball there. This is not ideal. We should play the different swings, for example clay, with the same ball.
Using one ball the whole year wouldn't work.' Top players like Andy Murray and Rafael Nadal have said many times that changing balls often affects players physically. Does he recognize that standpoint? 'I wouldn't say that it goes that far.
If the ball is causing injuries the player needs to get more ready for it. You can complain about everything, like a slippery court, a hole in the clay-court. We're looking for kids' excuses (laughs).' Marin Cilic thinks the same.
'It's too a wide question, because you have two guys. One likes the ball, the other doesn't. What to do? Which ball are you going to pick? Which brand? It has been like this since the beginning of tennis. It's not easy.
I think it's impossible to do it.' ALSO READ: David Ferrer: 'Roger Federer dominates the points like no else does'