
26-year-old, Sheffield born O'Donnell, who is a product of the Sheffield Wednesday youth system, has made over 100 appearances for the Saddlers since arriving at the club in the summer of 2013 and was rewarded with both the Players Player of the Season and the Player of the Season awards at the 2014/15 End of Season Awards.
Dougie Freedman's Forest, who are under a transfer embargo which only allows them to sign free agents and loan deals, are believed to bee tracking O'Donnell following the departure of former Saddlers loanee Karl Darlow's transfer to Newcastle United.
If the rumours are true the City Ground side join Reading, Millwall and Bradford City in the chase for the talented stopper.
If the rumours are true the City Ground side join Reading, Millwall and Bradford City in the chase for the talented stopper.