Ex-Ghana striker Nii Odartey Lamptey says coach Goran Stevanovic must drop star striker Asamoah Gyan from the final squad for the 2012 African Cup of Nations.Gyan, who plays for UAE side Al Ain, suffered a hamstring injury last week while playing for his club in a league game.He was ruled out for three weeks which means he will recover just before the start of the competition on 21 January.The former international says Gyan must be dropped because his fitness for trhe tournament cannot be guaranteed.“If is going to take him about three weeks to recover then I think the coach should be bold and drop him,” Lamptey told Joy FM.“This is a competition that you play almost every two days and before you can make an impact you have to be fully fit, so it is up to the coach to decide but I think if he does not recover on time then it will be appropriate to drop him.”Gyan has arrived in Ghana and he is hoping to get further treatment for the Black Stars medical team to be fit for the tournament.