ATP, WTA cancel all 2020 tournaments in China, including women's Tour Finals due to coronavirus - India Today
ATP updates provisional calendar, with indoor events and tour finals
2022 ATP Tour - Wikipedia
Printable 2020 ATP Schedule for Every Tennis Championship / Open (PDF)
ATP Announces 2020 Prize Money Levels and 2021 ATP Tour Calendar - Tennis Panorama
News - ATP 2024 Calendar announced | Mens Tennis Forums
2020 ATP Tour Calendar: Roger Federer and Novak Djokovic chase the Olympic gold
WTA and ATP events in Moscow canceled
ATP Cup 2020: Rafael Nadal, Novak Djokovic rally for merger of tournament with Davis Cup to free up tennis calendar-Sports News , Firstpost
Tennis calendar : The coronavirus pandemic creates chaos
Four new ATP events - Tennisnerd.net - New ATP 250 Tournaments
ATP Tour and WTA 2020: Schedule of Play for Wednesday November, 11 in Sofia and Linz - Tennis Connected
 "With eye on ATP Cup, world No. 2 Daniil Medvedev hits the Sydney courts")
With eye on ATP Cup, world No. 2 Daniil Medvedev hits the Sydney courts
Australian Open 2021, start date, Daniil Medvedev, ATP Finals 2020
Australian summer of tennis calendar set for 2024 | AO
ATP Tour 2020 Tournament Schedule
Tennis Australia rectify unforced error with advent of mixed-gender United Cup | Tennis | The Guardian
ATP World Team Cup returns to tennis calendar, to be played from 2020 in Australia
ZooTennis: ATP's First Quarter Calendar Released; BNP Paribas Open Postponed; Federer Out of Australian Open; UTR January $25K Deadlines Approaching; More on USTA Junior Structure Changes
Tennis: ATP adds four events to 2020 calendar - News | Khaleej Times
Tennis Schedule 2024: Full ATP Calendar 2024 & WTA Calendar 2024
