Brits Neal Skupski and Joe Salisbury overcame compatriot Henry Patten and his Finnish partner Harri Heliovaara to maintain an unbeaten start to their ATP Finals campaign.
Despite Salisbury being visibly under the weather and requiring a medical timeout during the first set, and Skupski wobbling on serve, the pair fought back to win 7-6(7), 3-6, 10-7 in an hour and 43 minutes.
