United States' Sofia Kenin leaves the court following her second round loss to Estonia's Kaia Kanepi during at the Australian Open tennis championship in Melbourne, Austr...

Spain's Rafael Nadal celebrates after defeating United States' Michael Mmoh during their second round match at the Australian Open tennis championship in Melbourne, Austr...

United States' Serena Williams makes a forehand return to compatriot Danielle Collins during a tuneup event ahead of the Australian Open tennis championships in Melbourne...