The 33 year old left back has been sidelined due to a knee injury which was sustained in the match against local rivals Norwich City towards the end of last season and despite having now recovered from his injury, it seems that Thatcher may not play for the club again.
Keane confirmed today: "Ben Thatcher is not in my thoughts. He is fit, but there are a number of issues with attitude in training and reporting for work on time among them."
The Town boss also insisted that Thatcher was not the only player he was unhappy with the attitude of: "There are one or two other players who I am looking for a bit more from as well."
Thatcher joined Town in the summer of 2008 on a free transfer following his release from Charlton Athletic, and is contracted to the club until June 2010 and last season started 23 games for the club.
Click here for a player profile on Ben Thatcher.