Oldham have been boosted after rookie Leeds defender Aidy White rejoined the club on loan until the end of the season.
The 19-year-old's initial loan spell ended after the home defeat by Rochdale earlier this month in a game in which he damaged ankle ligaments.
White returned to his parent club for treatment, but Leeds have now allowed him to rejoin the Latics following his recovery from injury.
Meanwhile, Oldham midfielder Jon Worthington has left the club after having his contract terminated.
The 27-year-old has now signed permanently for Bradford until the end of the season after initially joining the Bantams on an emergeny loan deal.