At various times, Agnieszka Radwanska, Daniela Hantuchova, and Serena Williams took part in shooting for Body Issue.
Her 35-match winning streak from the 2000 Wimbledon Championships to the 2000 Generali Ladies Linz tournament final is the longest since January 1, 2000.
Venus Williams has played against her sister in 27 professional matches since 1998, and won 11.
Djokovic is seeking his record 21st grand slam title this year and would become the first player since Rod Laver to win a calendar year slam since 1969.