James Forrest made it 3-0 to Celtic after a clanger from David Marshall. The former Celtic stopper found himself attempting to claw the ball back after letting Forrest’s strike through his gloves but the officials deemed it to have crossed the line.
Giakoumakis had doubled the scoring a matter of minutes ago but the Scottish champions are relentless.
Forrest, who opened the scoring, is one goal away from his 100th strike for Celtic. The winger will be hoping that he gets another chance to register this milestone.