Kris Commons fired Celtic into the lead on the stroke of half-time . James Craigen Partick Thistle's was sent off before the penalty . Stefan Johansen doubled the home side 's advantage in the 63rd minute .
Kris Commons fired Celtic into the lead on the stroke of half-time . Partick Thistle's James Craigen was sent off before the penalty . Stefan Johansen doubled the home side 's advantage in the 63rd minute .