Martin O'Neill has revealed an "overnight problem" meant Haissem Hassan did not start for Celtic against Rangers.
The winger was a notable absentee from the starting XI as he was instead amongst the substitutes away at Ibrox.
Martin O'Neill has revealed an "overnight problem" meant Haissem Hassan did not start for Celtic against Rangers.
The winger was a notable absentee from the starting XI as he was instead amongst the substitutes away at Ibrox.