BANGKOK - Sergio Garcia has opted to use ex-tennis star Juan Carlos Ferrero rather than his girlfriend as his caddie when he defends his Thailand Golf Championship title next month. Garcia enjoyed a four-shot win at last year's tournament with his girlfriend, former US college player Katharina Boehm, carrying his clubs at Amata Spring near Bangkok. But he said Boehm was happy to hand over the bag to Ferrero, his close friend and fellow Spaniard who once topped the tennis rankings and won the 2003 French Open. "I've played golf with Juan Carlos many times but he never caddied for me before. We just talked about it and he mentioned about it and we decided to do it. He is excited about it," Garcia said. "Katharina is fine. She is happy to step aside and support from the sidelines."