The 25-year-old has not played for Spurs since pulling his hamstring in a 2-1 home victory over Everton in the top flight on December 23.
Manager Ange Postecoglou revealed a few days after the match that Romero would be facing four to five weeks on the sidelines in another injury blow for his Spurs side.
The recent absence of Romero along with fellow first-choice centre-back Micky van de Ven has forced Postecoglou to play full-backs Emerson Royal and Ben Davies in central defence.
In addition, Postecoglou has been short of leaders in the first team due to the absences of vice-captain duo Romero and James Maddison, while club captain Son Heung-min is away on international duty with South Korea at the Asian Cup.
However, Romero is seemingly ahead of schedule in his recovery from a hamstring problem, as the Evening Standard reports that the Argentine has returned to training and will be in contention to face Man United this weekend.
Van de Ven has also returned to first-team training and could make his first appearance for Spurs since early November, while Ryan Sessegnon is fit to feature after making his first appearance of the season in last week's 1-0 FA Cup win over Burnley following a lengthy spell out with a thigh problem.
Postecoglou is set to have two fresh faces to call upon this weekend as forward Timo Werner and defender Radu Dragusin have both completed their respective loan and permanent moves to Tottenham.
Werner took part in his first training session as a Spurs player on Thursday less than 24 hours after finalising his
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