SINGAPORE - JANUARY 31:  Jordan Spieth of the United States (R) is pictured with his caddie, Jay Danzi on the eighth hole on day four of the SMBC Singapore Open at the Sentosa Golf Club Serapong course on January 31, 2016 in Singapore.  Jordan Spieth's manager and agent, Jay Danzi stands in as a caddie after Jordan's regular caddie, Michael Greller injured his ankle at the Abu Dhabi Championship and had to miss the tournament in Singapore.  (Photo by Suhaimi Abdullah/Getty Images)