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There's been huge sporting rivalries in sport, from Mayweather-Pacqaiuo last week, to Federer and Nadal, but are we about to see the emergence of one of the biggest sporting rivalries in golf?

6-time Masters champion Jack Nicklaus says the sport is in good hands after the emergence of Masters champion Jordan Spieth and Rory McIlroy. He believes it is time for the "young guys to take over".

So, what impact is McIlroy and Spieth's success having? Has there been a resurgence in interest?

Lee james speaks to PGA golf coach Jonathan Yarwood, who helped New Zealand golfer Michael Campbell to the US Open in 2005, and Nick Bradley, golf instructor to amongst others Justin Rose.

(Image: Rory McIlroy of Northern Ireland talks with Jordan Spieth on the 6th hole during the first round of the Valero Texas Open at the AT&T Oaks Course at TPC San Antonio on April 04, 2013 in San Antonio, Texas. Credit: Steve Dykes/Getty Images)