Former Bulls striker John Grant is one of four players currently on trial at Saturday's opponents Southend.
The former Crewe and Aldershot man was reported to be dropping out of the full time game in the summer to pursue a career in youth work near his Manchester home, so a trial at Southend is a surprising move.
The 29 year old spent a solitary season at Edgar Street, scoring a disappointing four goals in 26 games. He ended last season on loan at Oxford before being released by the Shots in May.
Meanwhile, former Bull Rob Purdie has finally made a playing comeback in Oldham's 1-1 reserve draw with Barrow this morning. Purdie, who has not made a competitive appearance for the Latics after being injured pre-season shortly after his arrival in May 2009, scored the Latics' goal after pouncing on a rebounded effort.