The move will initially see Trueman join the U's for seven days in the first instance.
This loan, if required, can be extended for additional seven-day periods at the end of each week.
Meanwhile, an amendment to the regulations for emergency loans - introduced last season – states that a player brought in must start. Therefore, Trueman will start for Oxford tonight against Fleetwood Town at the Kassam Stadium.
Good luck, Connal!