The field of this year's ATP 500 tournament in Halle is highlighted by the names like a nine-time champion Roger Federer, Alexander Zverev, Dominic Thiem and John Isner, and there is a lot of other players who will fight for the title in one of the strongest tests before Wimbledon. The organizers have saved the wild cards for the German players who couldn't make a direct entry and after Maximilian Marterer they have announced the names of the remaining two competitors who will not have to qualify in order to reach the main draw.
The 34-year-old Florian Mayer will have a chance to play in Halle for the last time as he plans to retire at the US Open, hoping to chase the title for the one last time and repeat the memories from 2016 when he toppled Alexander Zverev in the title match to lift his biggest trophy in a career. Mayer is currently ranked 90th and he is going to play in Halle for the 11th time, making a debut in 2004 and winning 18 matches overall, halted by Roger Federer on four occasions.
The 28-year-old Jan-Lennard Struff has never won a match in Halle, losing in the opening qualifying round in 2009, 2010 and 2012 and five times in the main draw, taking just three sets overall. Also, the draw wasn't on his side either, having to play against Roger Federer, Florian Mayer and Lucas Pouille in the last three years, hoping to change all that in two weeks time and grab some wins in front of the home crowd.