KIERAN Tierney faces a battle to be for to play for Celtic against at Parkhead on Sunday.

Neil Lennon today confirmed the hugely influential left-back, who missed Scotland's European Championship qualifying double-header against Kazakhstan and San Marino with a calf injury, will be assessed.

The Celtic manager confirmed: "Kieran has had a bit of a reaction today and may be a doubt. We will have to assess him tomorrow.

"It is the same issue and we will leave it maybe as late as possible to see how it is.

"He looked uncomfortable so we will give it 24 hours to see how it goes."