In me grandad's day, he'd tell you, they'd play week in week out, and it was on none of this Greenset, Rebound ace or Supreme Court whatever you call it, they'd play 9 set matches on hot coals in bare feet. And that was if they were lucky. And if they lost, even if there was only two points in it, their coaches would beat them with a belt, and that was to increase motivation! None of these sports psychologists they have now, it was a good slipper to the arse and you made sure it didn't happen again.
Tennis players now, they don't know they're born.