This week Chris and Jonny donned their whites for a mid-morning Lawn Bowls session at Blackheath and Greenwich Bowling Club.
The pair were guided by two of the sport's leading lights - World Indoor Pairs Champion Andy Thomson, and 21-year-old Sian Gordon, who'll be representing England in the upcoming Commonwealth Games in Delhi.
Click Play above to watch the video and see which of the boys triumphed in the nail-biting deciding match, and who was left with the loser's forfeit.
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