Nicklaus: Mac has to step up to be greatest
Jack Nicklaus says Rory McIlroy will have to raise his game if he is to become the greatest golfer in the history of the sport.
The four-time Major winner is just one spot off the World number one ranking, but Nicklaus suspects that the Ulsterman will have to up his work-rate if he is to overtake Jason Day and cement his place at the top of the game.
The 18-time Major champion said: "He has to work hard, he's got to focus on what he is trying to do and it is up to him.
"Certainly he has all the tools to be able to do it - it is just whether he has the desire and the willingness to give up some other things.
"And that's his call. I mean, whatever Rory does, he has established himself as one of the great players that has ever played the game.
"Whether he wants to be the greatest player to have played the game, that's his determination and it's his decision whether he wants to make that effort to try to do that."