Hearts of Oak coach Nebojsa Vucicevic wants to personally observe Ishmael Addo's form before he is signed by the club.
The Serbian has reportedly told the club's management to put contract talks on hold as he wants to see more of the striker.
The Serb is reportedly expressed his concern over management's decision to sign their former striker without being assessed by the coach.
Vucicevic said he wants to be sure if the former Maccabi Tel Aviv striker will fit well into his plans to rescue Hearts' tattered season.
Addo said to be demanding up to U$35,000 to ink the deal for the Ghanaian giants.
The coach's decision on Addo means he is not impressed with recruitment done by the management which has resulted in their patchy form.