Name: Louis Oosthuizen
From: South Africa
Previous Australian Open form: First appearance at the Emirates Australian Open, but has won the ISPS Handa Perth International in 2016
Primary Tour: US PGA Tour
Career wins: 1 (US), 13 (International)
Comment: Sweet-swinging “Oosty” has been a fixture at the top of major championship leaderboards for a decade, winning the 2010 Open and finishing runner-up in each of the others, to boot. A 14-time winner around the world, he hasn’t won since last year’s South African Open, but enjoyed a highly successful PGA Tour season this year with five top-10 finishes en route to 21st in the FedEx Cup.