It is a massive boost for the team, given that Jonathan D'Laryea will be out for up to 3 months, which left the midfield short of options.
"We have shaken hands on a deal, subject to a medical," manager Billy Dearden told the Mansfield CHAD.
"He has agreed to join us for the season and I am very pleased.
"From day one Lee has been bright and worked very hard. And if he can get back to playing how he was playing 12 months ago with Crewe then who knows what could happen with Lee"