Bookmakers on Thursday afternoon suspended betting on who would succeed Steve McClaren after huge support for Roy Keane.
MK Dons manager Karl Robinson was the early favourite to be installed as Forest's next manager after McClaren and chairman Nigel Doughty resigned on Sunday night following the 3-1 defeat at home to Birmingham.
But on Thursday afternoon, bookmakers William Hill suspended their market for who will be the next Nottingham Forest manager after taking a bet of £5000 on Keane at odds of 2/1, shortening him to Even money, but continuing to be asked for hefty wagers at that price.
Hill's spokesman Graham Sharpe told Crunchsports.com: There have been a number of well backed contenders to succeed Steve McClaren such as Karl Robinson, Billy Davies and Alan Shearer.
"But after seeing a string of bets of up to £5000 for Roy Keane with little support for anybody else, we have decided to suspend the market in case an appointment is imminent."