Although, there is conjecture as to whether the bid was serious or not, there has been no new bid since and Boothroyd said: "They made an offer about three weeks ago and Keiren knows all about it.
"It's £3.50 and a bag of haggis, which is nowhere near enough for a player of that quality.
"I don't want to lose someone who I think is the best goalkeeper in the division, someone I want to do is build a team around him.
"Negotiations are ongoing, as they always are, it's a pain in the neck but that's how it is I'm afraid when other people are involved. "The offer is not really worth talking about because it's derisory and derogatory.
"So for now Keiren is very much our player. I want him here, Ray Ranson wants him here and I imagine every single Coventry fan, player and member of staff wants him here. This is the place for him to further his career."