Four-time Grand Slam champion Naomi Osaka and world number three Jessica Pegula have pulled out of the new women's tournament at Queen's Club.

Former world number ones Naomi Osaka and Victoria Azarenka both advanced to the second round in the Wimbledon warm-up tournament at Bad Homburg on Monday.

Russia's Liudmila Samsonova came from behind to beat Naomi Osaka while Australian Open winner Madison Keys crashed out in the first round of the Berlin Open on Tuesday.