Stanislas Wawrinka of Switzerland celebrates after defeating Tomas Berdych of the Czech Republic during their semifinal at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 23, 2014. (AP Photo/Aijaz Rahi)

Stanislas Wawrinka of Switzerland celebrates after defeating Tomas Berdych of the Czech Republic during their semifinal at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 23, 2014. (AP Photo/Aijaz Rahi)