Bamford has been sidelined for Leeds since suffering a knee injury with the Under-23's.
The 25-year-old managed just seven appearances for Leeds, starting two Carabao Cup appearances and making five substitute appearances in the Championship after joining the club from Middlesbrough.
Marcelo Bielsa has used Carlos Corberan's Under-23 side regularly to give his fringe players game time, with Samu Saiz, Jamal Blackman, Conor Shaughnessy, Jack Clarke, Jack Harrison and Jamie Shackleton all playing on Monday.
Bamford played for the second string back in September and suffered an injury to his posterior cruciate ligament, which forced him to go under the knife and was ruled out for what was believed to be four months.
However, Bamford is said to be hoping to return at around the three-month mark, which would see him recover from the issue and pull on a Leeds jersey again in the middle of December.
If he does indeed return then, it will come as a huge boost to Leeds in their bid for promotion. Despite the form of Kemar Roofe, having a player with the experience and goal threat of Bamford off the bench will be crucial.
Leeds are next in action against West Bromwich Albion, and have nine fixtures including Saturday's evening kick-off until New Year's Day.