Guzan has impressed stepping in for the injured Shay Given.
“We’d already been talking to Brad about a contract before his spell between the sticks and things were quite promising," said McLeish.
“But we’ll talk again after we decide to bring Shay back – or whatever. We’re hopeful, but I’m sure his bargaining power might have gone up a wee bit.
“It hasn’t surprised me how well he’s done. I watch him closely in training and he turns up for work every day and puts in a shift. He doesn’t just go through the motions, he works from start to finish.”