The Nigeria international defender played a huge role in the Bhoys’ disappointing 2-2 draw with the Turkish giants at Celtic Park on Thursday evening.
It was the 26-year-old’s mistake before the half-time interval which allowed Fernandao to score the first goal for Fenerbahce.
Celtic were 2-0 up at the time, and the Turkish outfit restored parity three minutes into the second half once again through Fernandao.
Former Aberdeen manager Miller was following the game, and he was disappointed with Ambrose’s performance.
"You've got to be better at the back,” the former Scotland international defender told BBC Scotland. “Efe Ambrose keeps making these mistakes. You keep asking when it's going to stop, IF it's going to stop.”
How many times Efe???— Frank McAvennie (@MaccaFrank) October 1, 2015
Efe plus zonal marking just doesn't work— Frank McAvennie (@MaccaFrank) October 1, 2015
Over the course of the 90 minutes at Celtic Park, hosts Celtic had 52% of the possession, took 16 shots of which seven were on target, and earned seven corners.