'Like a freight train once we got hot': How 'twin energy' fueled tennis' greatest ever double act

When you spend every moment of every day with another person -- eating, sleeping, training, competing -- it's hardly surprising that you should develop a formidable partnership, even less so if you share the same DNA.

source https://www.cnn.com/2023/05/29/tennis/bryan-brothers-tennis-french-open-spt-intl/index.html