Gilles Muller was too good for an inconsistent Jo-Wilfried Tsonga, as the Frenchman joined the big names to exit the AEGON Championships.
Dominic Thiem made an early exit in Halle, losing in straight sets to the unseeded Robin Haase.
Anastasia Pavlyuchenkova was rapidly ousted from the Mallorca Open by Julia Gorges, while Victoria Azarenka is back and means business.
Two-time Wimbledon champion Petra Kvitova put in an ominous display in disposing of Naomi Broady at the Aegon Classic on Wednesday.
After suffering his own dip in form, two-time major champion Martin Kaymer has some advice for his struggling compatriot Angelique Kerber.
Playing her first match since the French Open last year, Victoria Azarenka got herself out of trouble to claim victory in Mallorca.
The 39-year-old said a "very loud thank you" to Wimbledon's organizers.
After being handed a wildcard, Tommy Haas said a "very loud thank you" to Wimbledon's organisers.
With Wimbledon on the horizon, Novak Djokovic will head to Eastbourne to play the AEGON International.
Just one game stands between Victoria Azarenka and defeat in her first outing on the WTA Tour in over a year.