Sadick picked up a knee injury against CARA Brazzaville in the Caf Confederation Cup preliminary round but trained with the first team throughout the week alongside Boahene.
"Sadick and Boahene are fit and have been training with the first team. However, their availability will depend on the coach's final game plan,” the club's communication director Obed Acheampong told Oyerepa FM.
"The only player who has been absent from training is Daniel Darkwah but we're hoping that he can recover on time since his quality will be needed.
"In spite of all the injury concerns and other related issues, we're optimistic that we can achieve our target on Sunday. The supporters should remain calm and cheer the players on even if the opponents outplay Kotoko at a point in the game," he added.
Kotoko, who sit third on the log, head into the game on the back of a 2-0 away win against Wa All Stars, while Hearts are winless in their last three games.