“It is shameful that in the 21st Century we are forced to play Serie A games on this pitch. It was like a vegetable patch," said Mihajlovic.
“You can't try passing the ball on this field, as it bobbles around and changes direction, it takes a long time to get to you, it's all unpredictable."
He added: “What we need to do more, and it was an issue last week too, is when we're up against teams that defend with 10 men behind the ball, we have to try shots from distance. If we wait until we can walk it into the net, we'll be there all day.
“It was not a defeat I expected. I was convinced we would bring the points home. I didn't take the pitch into account, but then it's always been bad here, even when I was the coach of Sampdoria. It's better for vegetables than football."