Striker Mahatma Otoo has sparked massive worries for Hearts of Oak after refusing to rule out a move to arch- rivals Kumasi Asante Kotoko.

The Ghana champions Kotoko have slapped in an offer to sign Otoo despite having one year remaining on his contract with the Phobians.

Kotoko have made the former Ghana Under-20 captain a transfer priority as they assemble a strong squad for next year's CAF Champions League.

Otoo refused to give a ringing endorsement of his future stay with Hearts insisiting he is willing to discuss the offer with Hearts management.

“I still have one year left on my contract with Hearts but I want to sit down with management to hear what they have to say about the offer from Kotoko,” Otoo told Asempa FM.

The Kumasi-based side have lost striker Ahmed Toure and new a replacement to aid their domestic and Africa campaigns next season.

Hearts have expressed their unwillingness to sell the 2011 All Africa Games gold medalist.

Kotoko are also leading the race to sign midfielder Uriah Asante who spent last season on loan at Hearts of Oak.