Mischa Zverev saw off the challenge of Mikhail Youzhny in the MercedesCup to earn himself a clash against Roger Federer.
The German secured a 7-6 (7-5), 6-3 victory over Youzhny to set up a second-round match against 20-time Grand Slam winner Federer.
There were no breaks of serve in the first set with Zverev edging the tie-breaker while the crucial break came in game six of the second set.
Teenage wild card Rudolf Molleker also advanced as he became only the second 17-year-old to win a match on the ATP Tour this year as he beat fellow German Jan-Lennard Struff 6-4, 6-7 (5-7), 6-3.
He will face second seed and defending champion Lucas Pouille, who had a bye in the first round, for a place in the quarter-final.
Guido Pella booked his place in the second round as he beat Australian John Millman 6-2, 6-2 while Florian Mayer was a 6-4, 6-1 winner over Yannick Maden.
Nick Kyrgios and Marin Cilic will battle it out for a place in the Fever-Tree Championships final.
Roger Federer secured a two-set win over Matthew Ebden to move into the semi-finals of the Gerry Weber Open.
This year marks 20 years of Roger Federer on the ATP Tour and we reflect on how his hair style changed of the years.
Novak Djokovic is not getting “too ahead” of himself.
In Tennis Today, Nick Kyrgios “just tryna have some fun”.
Barbora Strycova defeated Garbine Muguruza to advance to the quarter-final of the Nature Valley Classic.
Lucie Safarova moved into the quarter-finals of the Mallorca Open with an easy win over Victoria Azarenka.
Solid day for the British contingent at the Fuzion 100 Ilkley Trophy.
Aussie shows glimpse of fiery temperament.