McIlroy recently split from girlfriend Holly Sweeney.
International Sports Management confirmed the breakup in a statement to ESPN: “Rory McIlroy’s long-time relationship with Sweeney came to an amicable end before the Open Championship.”
Mcllroy, 22, and Wozniacki, 21, were recently spotted having dinner in London. They were also seen hugging.
The two athletes met earlier this month at a boxing match.
Wozniacki tweeted about the encounter on July 2: “Fantastic fight! Also met Rory McIlory, who was sitting just behind me:) Really down to earth great guy.”
Since then, the two have exchanged messages on the social networking site.