Celtic’s hopes of progressing from the Europa League group stage came to an end on Thursday after another woeful result.
Neil Lennon’s side fell to a second successive 4-1 defeat to Sparta Prague, and many Hoops fans weren’t impressed with defender Kristoffer Ajer.
David Hancko soon equalised after Celtic failed to clear from a corner, with Lukas Julis putting the hosts ahead shortly after.
Ajer didn’t cover himself in glory along with his defensive colleagues, with the 22-year-old caught out for the cross which led to Julis’ first.
The forward scored his fifth goal against the Hoops in two games with 10 minutes remaining and Srdjan Plavsic sealed the win in stoppage time.
These Celtic supporters weren’t impressed with the centre-back and vented their frustrations on social media, with one describing the performance as ‘horrendous’.
Twitter: @macaroni1888 Id happily sell Ajer, Ntcham, Christie, McGregor for starters (@DavidOReilly3)
Twitter: Ajer having a mare (@Paul70872375)
Twitter: Down 2-1 now. Ajer allows the ball to run across the face of him and further into the box. What’s he doing? Inexcusable from him. (@MattMcGlone9)
Twitter: @MattMcGlone9 Ajer needs dropped hes not interested Matt. (@_lippylipez_)
Twitter: Ajer is horrendous! Doesn’t look interested either. Sad times!
Twitter: Did Celtic secretly sell Ajer in the summer and replace him with his doppelganger?? Nowhere near the same player. (@ninjapotato10)
Twitter: When we thought Duffy was the problem with the defence Ajer goes and gives us a whole new headache (@stephencl8)