The Danish tennis ace agreed to caddie for McIlroy in the traditional Masters Par 3 Competition, an eve-of-tournament event played in front of tens of thousands of spectators at Augusta National in Georgia.
Former world number one Wozniacki is making her first visit to the Masters and McIlroy's delighted she'll carry his golf bag into action on the hilly Par 3 course.
"I just want to get her into one of those white boiler suits the caddies must wear at Augusta," said the Ulsterman.
Wozniacki invited McIlroy to join her on the tennis court during a break in play at an exhibition match in New York's Madison Square Garden last year and play a point against her opponent Maria Sharapova, which he won.
But it wasn't just Holywood's finest golfer that brought along the other half.
Portrush's Graeme McDowell also got help from fiancee Kristin Stape - joining Wozzilroy out on the course today.
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