When Rafael Nadal claimed during an Instagram chat with Andy Murray that he had only begun preparing that day for the upcoming virtual Madrid Open, both men broke into laughter.
"Feliciano Lopez told me you have been practising for three or four hours a day," joked Murray.
Given their competitive spirit, it is easy to imagine both have spent more than a few lockdown hours glued to a PlayStation since last Monday's chat.
With tennis suspended until at least mid-July because of the coronavirus pandemic, Nadal and Murray are among 32 of the world's leading ATP and WTA players replacing the buzz of competitive action with an online fix.