(CNN) -- New golf world number one Lee Westwood has told CNN he will not be resting on his laurels, after officially taking over from Tiger Woods at the the head of the world rankings.
Westwood officially ended the American's five-and-a-half year reign at the top on Monday, but the Englishman revealed that getting to No.1 -- and staying there -- are two totally different things, especially with a re-energized Tiger looking to regain his ranking.
"I know Tiger very very well and know what he can do when his back is against the wall," the 37-year-old told CNN Sport's Alex Thomas.
"He seems to react well to adversity and knocks and I shouldn't imagine it'll be too long before he's back and playing his best golf and then it'll be hard to stay at the top of the rankings.
"But you know it's a challenge I'm looking forward to, but one thing nothing will ever take away is the fact I've been able to sit there and say 'I've been world number 1'.
"Tiger set the bar very high a few years ago, and all the other golfers had to elevate their games to get to that level.
"If his performance drops off then other golfers have got to make sure they are there to fill his shoes and go for that top spot in the rankings," added Westwood.
CNN
