Daniil Medvedev takes No. 1 world ranking, ending 18-year streak of tennis' 'Big Three ' dominating top spots | CBS Sports Headlines Daniil Medvedev takes No. 1 world ranking, ending 18-year streak of tennis' 'Big Three ' dominating top spots This is the first time since 2003 that no combo … Continue reading Daniil Medvedev takes No. 1 world ranking, ending 18-year streak of tennis' 'Big Three ' dominating top spots