Stuart Armstrong broke the deadlock for Celtic against Rangers after 35 minutes of the Old Firm derby.
After Jason Holt failed to secure possession on the edge of his own 18-yard box, Armstrong won the ball back for Celtic.
A quick exchange with James Forest saw Armstrong once again receive the ball just outside the Rangers box. The 24-year-old then fired an arrowed left-footed strike beyond the reach of Wes Foderingham.