Wilson who made 14 (+1 as sub) appearances during his short time at Field Mill, was carried off the pitch in the 37th minute after taking a serious knock.
However Chester have revealed that Wilson suffered a ligament injury and is expected to be out for no more than two weeks.
Wilson spent three months on loan at Field Mill during the last part of the 2005-06 season.
However a deal couldn't be found to keep the move permanent for the following season, Wilson instead choosing to head to Chester. This was desipte saying at the time "Mansfield is just the type of club I would like to join if things don't work out (at Everton). I've enjoyed playing here and the fans have been good to me."
Another former Stags player, Dave Artell was suspended for the home side.