The entry list of players for the Gerry Weber Open in Halle comes out on 8th May, but the German tournament has already confirmed most of the players whose names will be featured in the entry list. Roger Federer, Alexander Zverev, Dominic Thiem, Kei Nishikori, Hyeon Chung, Philipp Kohlschreiber, Andrey Rublev and Karen Khachanov.
Longtime tournament director Ralf Weber thinks it won't be easy for Roger Federer to successfully defend his title and triumph here for the tenth time in his career. 'We are surprised,' Weber admitted. 'Also this year we expect an extremely strong field and it won't be easy for the defending champion Roger Federer.' ALSO READ: Roger Federer officially adds new ATP event to his 2018 schedule