Alexander Zverev and Andrey Rublev have booked their place in the second round of Halle, but top seed Daniil Medvedev has taken a surprise early exit.
World number two Medvedev, who was making his first appearance at Halle, was playing German Jan-Lennard Struff, who won in straight sets 7-6, 6-3.
It is Struff's first win over the Russian, who has won their previous three meets, and after the match, the German was happy he could do it in front of a home crowd.
“This is the biggest win — rankings wise — of my career and to do it here on home soil is very special. I live only an hour from here," said Struff.
Meanwhile Alexander Zverev saw off a tough challenge from fellow German Dominik Koepfer to win 6-4, 3-6, 6-3.
Zverev had a quick turnaround from his semi-final loss at Roland Garros on Friday and said the lack of grass practice affected his game.
“I didn’t feel well on the grass yet. This is my third day on it, but for a good reason because I played pretty well in Paris,” Zverev said in an on-court interview.
“There is still a lot of work ahead of me, but I’m definitely happy to get the win," finished Zverev.
Less than 24 hours after they played together on a doubles court, Andrey Rublev got the better of his partner Karen Khachanov on a singles court to make it into the second round.
Fourth seed Rublev recorded his 30th win of the season on by overcoming Khachanov 6-3, 7-6 and said after he knew it would be tough.
“I was waiting for this match to feel this tension,” said Rublev. “I needed to feel the pressure and I am happy with my performance today in my first match on grass.”
Rublev will play Jordan Thompson while Jan-Lennard Struff plays Marcos Giron in the second round tomorrow. Roger Federer will also feature tomorrow against Felix Auger-Aliassime.
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