Wimbledon champion Marketa Vondrousova begins her grass-court campaign with victory over Rebeka Masarova at the Berlin Open.
Cameron Norrie is unable to turn his fortunes around on the British grass as he loses to huge-serving Milos Raonic at Queen's.
Australian Open champion Aryna Sabalenka will not play the Paris Olympics to prioritize hard-court tournaments.
Aryna Sabalenka says she will not compete at this summer's Olympic Games in Paris in order to prioritise her health.