On second thought, judging by the endorsement deals of these tennis players in 2019, maybe it is an order of magnitude greater: https://www.forbes.com/sites/ku

On second thought, judging by the endorsement deals of these tennis players in 2019, maybe it is an order of magnitude greater: https://www.forbes.com/sites/kurtbadenhausen/2019/08/26/highest-paid-tennis-players-roger-federer/ https://www.forbes.com/sites/kurtbadenhausen/2019/08/26/high...