Hearts coach admits 'concern' over Steven Naismith's fitness
Attacker is a major doubt for Thursday's Edinburgh derby
Hearts coach Andy Kirk has revealed veteran attacker Steven Naismith is a doubt for Thursday's clash with Hibs.
The 33-year-old suffered a recurrence of a hamstring injury in Saturday's 2-1 defeat against Hamilton.
Naismith had returned to the side after a three-game absence but came off at half-time and former Northern Ireland international Kirk admitted his concern.
He said: "We will find out more today. Steven is a major player for us so having him available would be great but we might need to look a wee bit long term with him.
"It is a wee bit of recurrence of what he had previously. We need to be careful with how we treat him.
"There is always concerns but as much time and effort we can put into him to get him right, it will benefit us in the long run."