Speaking as a pundit for BT Sport Gerrard described Arsenal's midfield, which featured Mikel Arteta, Santi Carzorla and Mesut Ozil, as 'weak' and lacking power and strength.
"Arsenal's midfield was weak tonight with Arteta, Cazorla and Ozil," Gerrard said.
"It lacks power, it lacks strength.
"I thought they badly missed a Flamini or a Coquelin in there to break the play up.
"On the counter attack, Zagreb were cutting Arsenal apart."