Tiger Woods has sacked his long term caddy, New Zealander Steve Williams, after 13 years loyal service.

Woods said on his website he wanted to express his deepest gratitude to Steve for all his help, but he felt it was time for a change.

Williams was understandably very disappointed, having stuck by Tiger's side throughout his sex scandal.

Theirs was one of the most successful partnerships in the golfing world.

But Williams said he will now work for an Aussie golfing great - Adam Scott - who he has been working with recently at the US and British Opens. 

He said he had started his caddying career working with Aussies Peter Thomson and Greg Norman, and he was excited to be working with another Australian on a permanent basis.