JOHANNESBURG - The world's best golfers have descended on Louisville, Kentucky for the second major of the year, the PGA Championship.
A total of 156 players will be looking to make the cut after the first 36 holes, then contend for the title on Sunday.
Brooks Koepka is the defending champion, having won his third title in five years.
South Africa boasts five players at Valhalla, including major debutant Ryan van Velzen.
To help us preview the tournament is sports journalist Michael Vlismas.