Justin Rose

Rose the player to beat at US Masters

Others capable of victory include Europeans Francesco Molinari, Jon Rahm, Paul Casey and Tommy Fleetwood, and Americans Brooks Koepka, Rickie Fowler and Bubba Watson.

Australians Jason Day, Marc Leishman and 2013 champion Adam Scott, are also capable.

There has been no long-shot winner at Augusta National since 69th-ranked Angel Cabrera collected the Green Jacket in 2009, though even the Argentine's victory was far from a huge shock given his pedigree as a US Open champion two years earlier.

Cram: Athletes unfairly viewed as cheats

British Olympic gold medallists Mo Farah, Helen Glover and Justin Rose were the latest people to have medical files made public by hacker group, the Fancy Bears, on Monday.

Cram said: "We are just normal people and normal people suffer hayfever and asthma that require long- and short-term medication – does that mean you cannot do sport?

"I think we are getting into a crazy scenario where we are assuming everyone is cheating. They aren't. We are frightening people away from top-level sport."

(Picture: watchfit.com)

Justin Rose wins Olympic Golf event

Rose, who hit a hole in one on his first day, carded a final round four-under-par 67 to beat Sweden's Henrik Stenson by two shots in a competition that went all the way to the final putts. American Matt Kuchar claimed bronze.

"I've been thinking about Rio for a long, long time," Rose said. "To come out of it with a medal is incredible, and to come out of it with gold, unbelievable."