Guess he just wanted to keep the pranksters at the All England Club on their toes by whipping out a kids' golf club from his racket bag before his opening match.
The image is courtesy of a BBC story.
While an unbylined AP story explains:
As something of an inside joke with a sponsor, Djokovic pulled a kid's golf club out of his racket bag and put it on the sideline when he arrived to face 2003 French Open champion Juan Carlos Ferrero at the grass-court Grand Slam's main stadium. Then, after a bit of a slow and nervous beginning that included an early break, Djokovic righted himself and beat Ferrero 6-3, 6-3, 6-1 to reach the second round at the All England Club.
"It was a little funny thing," said Djokovic, whose racket maker gave him a bag that has posts to make it stand like a golf bag. "Being creative, that's all. But fans corrected me right away. They said, 'This is not a golf course.' I said, 'OK.'"
Djokovic is no stranger to keeping things light. His impersonations are quite fun.