Media reports indicate the Rainbow Club had been in contacts with the former AC Milan and Inter Milan midfielder.
Muntari is said to have agreed to feature for the Ghanaian giants as he prepares to announce his retirement.
However, the former Ghana Champions have rebuffed the said reports circulating in the media.
@HeartsOfOakGH wants to notify the general sporting public that we have not signed Ghana International Sulley Muntari as it’s being reported by the media. Sulley is a great player and a friend of the club. We will continue to unveil the players we have signed.
— Phobians (@HeartsOfOakGH) April 24, 2020
The Ghana Premier League side did not indicate whether there have been contacts with the former Sunderland star.
The 35-year-old is currently clubless after leaving Spanish side Albacete.