Celtic will take on Old Firm rivals Rangers in the semi-finals of the Scottish Cup at Hampden Park in Glasgow later this month.
Earlier this week, 30-year-old midfielder Brown criticised the surface at the stadium which was relaid last month, claiming that it was “bang average”.
"It [the pitch] was bang average as always," the Scotland international told The Glasgow Evening Times. "That’s what happens when you play somewhere that’s used week-in, week-out.”
Former Celtic midfielder and manager Hay believes that Brown should not worry about the pitch and concentrate just on the match against Rangers.
“I know the pitch was relaid at the beginning of March and it can take a while for the new surface to knit together, but at the same time you can understand why players turning out for their country or playing in the semi-finals of the Scottish Cup expect to be playing on a good pitch,” Hay wrote in The Glasgow Evening Times.
“However, the only thing I would urge Scott to do is to go and have a trawl through some YouTube footage of some of our games in the 70s – I can assure you that very few of them were played on a bowling green. It will be the same for both teams and there are times when you simply have to roll up the sleeves and get on with it.”
One can understand why Brown is frustrated with the pitch at Hampden Park, but as Hay advises, he needs to just get on with it.
After all, both Celtic and Rangers will have to deal with the same pitch conditions on the day.