British number ones Johanna Konta and Kyle Edmund won their respective matches to proceed to the second round at Wimbledon.
Konta, a semi-finalist last year, beat Natalia Vikhlyantseva 7-5 7-6 (9-7) and Edmund won 6-2 6-3 7-5 against Australian debutant Alex Bolt.
Konta, whose run at the All England Club last year lifted her to a career-high fourth in the world, has struggled for form this year and has slipped to 24th in the rankings.
Edmund had only ever beaten fellow Briton Alex Ward in the main draw at Wimbledon, but came into this year's Championships after a successful season that has seen him rise into the world's top 20.