Alexander Zverev The top seed and local favourite arrives in Halle riding the confidence of his maiden Grand Slam title. A former finalist with a strong record at this venue, Zverev will be looking to continue his momentum on home soil.
Felix Auger-Aliassime
Auger-Aliassime had a disappointing grass-court start in 's-Hertogenbosch but remains a dangerous player on this surface. The former Halle semifinalist will be aiming for a much deeper run this week.
Alexander Bublik
The defending champion is one of the most unpredictable and dangerous grass-court players on tour. Having defeated Jannik Sinner en route to the title last year, Bublik has the game to trouble anyone in the draw.
Daniil Medvedev
Medvedev enjoyed a solid week in 's-Hertogenbosch and now returns to a tournament where he has twice finished runner-up. With runner-up points to defend, the Russian has plenty of motivation to deliver another strong campaign.
Taylor Fritz
Fresh off another strong grass-court week, Fritz arrives with form and confidence on his side. Despite his excellent record on grass, the American is still searching for his first main-draw win in Halle and will be eager to change that this year.