Defending champions Henry Patten and Harri Heliovaara began their men’s doubles title defence with a hard-fought victory over British duo Dan Evans and Henry Searle.
Briton Patten and Finland’s Heliovaara prevailed 7-6 (7-4) 6-4 as they chase a third major triumph at their fifth Slam as a pairing.
They won the Australian Open in January after claiming their first doubles title together at Wimbledon 12 months ago, having only joined forces in April last year.
They could face another all-British pairing in the second round, as they wait to see whether Marcus Willis and Billy Harris can overcome Alexander Bublik and Flavio Cobolli.
In the women’s doubles, British pair Jodie Burrage and Sonay Kartal came from behind to beat Spain’s Jessica Bouzas Maneiro and Yvonne Cavalle-Reimers 4-6 6-1 7-5.
But Harriet Dart and Maia Lumsden were knocked out with a 3-6 7-6 (7-0) 6-4 loss to McCartney Kessler and Clara Tauson.