It was a big operation, but the knee is brilliant now.' However, Greening was fit enough to work on his line-out throws with world darts champion Phil Taylor. 'He gave me tips on how to cope under pressure,' he said. 'When you make one or two bad throws in a game, everyone thinks you have a problem.' Another player under the surgeon's knife is 32-year-old Northampton Saints skipper Pat Lam, who had keyhole surgery on his left shoulder in a London hospital yesterday.