The British pair are a dominant force in wheelchair tennis, having won 19 grand slam doubles titles together.
Daniil Medvedev continued his Rome title defence with Monday's hard-fought 7-6 (7/5), 2-6, 7-5 win over qualifier Hamad Medjedovic as the men's tournament was left wide open by big-name exits, the latest being fourth seed Andrey Rublev.- Swiatek on course - World number one Iga Swiatek is yet to drop a set after beating Angelique Kerber 7-5, 6-3 and is favourite for a third Rome crown before she begins her French Open title defence later this month.
Two members of environmental protest group Ultima Generazione ran on to the court wearing orange vests and threw confetti.