The 2017 Davis Cup draw provides a possible Wimbledon final rematch with Canada hosting Great Britain.
The 19-year-old Croatian hires Mario Ancic's big brother and former coach.
"Why not set up a record that will never, ever be done again in history. And I think she can do it," coach says of Serena.
Former WTA pro made history as first African-American and former pro player to serve as President.
Canadian No. 1 supports American No. 2 in new ad campaign.
Serena Williams, Flavia Pennetta and Fabio Fognini join Djokovic for charity gala dinner.
Qualifier Peter Gojowczyk and Nicolas Almagro combined for 49 aces.
