Normally the figures that sportsmen earn these days for their craft offend my left leaning sensibilities, but I make an exception for the hard working superstars of tennis. I begrudge Andy Murray not a dollar for his $20,376,752 career earnings, though this might in part be because his lifestyle isn't ostentatious or obnoxiously decadent, unlike the stars of other professional sports.
Tennis is played for nearly 11 months of the year, with a genuine off season of just 6 weeks, three of which are spent in conditioning training preparing for the start of the new season. It is one of the few truly global sports in terms of its calendar. Formula One may be the only sport that can claim to hold more premier events in wider flung destinations.