Celtic's defending against Ajax has been labelled as 'comical' by Charlie Adam, who was working as a pundit for ITV Sport.
The former Rangers man, who currently plays for Stoke City, was less than impressed by Celtic's set-up to defend a Lasse Schone free-kick, which ultimately ended up in the back of the net.
Schone bagged a late equaliser in the 2-2 draw at the Amsterdam ArenA when his flighted set-piece drifted in at the far post, and Adam believes that the Bhoys let themselves down with their defensive shape.
"The defending for the second goal was comical again," he fumed. "They are setting up too deep. They have to be higher up by two or three yards to give the goalkeeper a chance to come and get it, or punch it."
For Celtic to get a draw against Ajax is still a positive result, but they could have left the Dutch capital with all three points.
A red card for Emilio Izaguirre in the closing stages of the contest proved costly, and Adam felt that it was an avoidable sending off.
"The disappointment is the sending off," he added. "It was a killer blow to them. He dives in and all he has to do is show him down the line. He tries to tackle with his wrong foot."
Celtic's focus now turns to league matters, with a match against Dundee on the horizon when they return to Scotland this weekend.
The Bhoys have started poorly in the Scottish Premiership and they will be have to tighten up their defence quickly if they are to catch Aberdeen, who are currently leading the way - five points clear of the defending champions.