The former Aston Villa star told talkSPORT Breakfast: "Arsenal fans…come on! You've got your manager giving this big speech, Arsenal fans turn up, the tifo…I don't know what that was. That was horrendous. It was like my seven-year-old had done it at school for a project and brought it to the stadium and asked if they could hang it up. It was embarrassing. They were quiet. I was sat watching it like come on, this is the semi-final of the Champions League. Look at what Liverpool have done at Anfield, what Aston Villa have done against PSG. Do they need a man with a speaker behind the goal saying: 'Sing, sing, sing?
"I just felt the tifo was embarrassing, the atmosphere was embarrassing, for a semi-final the club should have done a lot more. It’s incredible, how can you just not create an atmosphere for your players? I’ve seen [Martin] Odegaard, I saw [David] Raya, I saw [Gabriel] Martinelli a few times as well, [Mikel] Arteta, it’s like they were begging, ‘please, can you sing? Give us something, help’. You’ve got to cover a lot more of that lower tier, not just a little bit [with the tifo]. It was horrendous. It summed up the night for Arsenal, the tifo."