Riders on horseback present the Presidents Cup during the opening ceremony at Royal Melbourne Golf Course.
Star watch: the International team and the U.S. team file in.
Tennis star Ana Ivanovic, back on the arm of Adam Scott, and Jessica Yang will cheer on the International team.
Phil Mickelson is playing in his ninth straight Presidents Cup.
Tiger Woods is paired with Steve Stricker for Thursday's foursomes.
Adam Scott of the International team and Bubba Watson of the U.S. team.
Ryo Ishikawa has a different look in Presidents Cup attire.
The women behind the captains: Kirsten Norman and Midge Trammell.
K.J. Choi is flanked by Aaron Baddeley and Jason Day.
Liezl Els and Amy Mickelson arrived together at the opening ceremony.
Team captains Fred Couples and Greg Norman are ready to square off at the ninth Presidents Cup.