"Tomorrow (Wednesday) I am going to play with the reserves in a friendly match," Rojo told TyC Sports. "I feel good. Up until now, I have not had any problems but training is not the same as a match.
"In three weeks we have a Champions League game and if all goes well tomorrow, I could play in that."
United, who are second in the Premier League, are unbeaten in this season's European competition and need one point from two matches to be certain of qualification for the knockout stages.
Rojo, who has earned 54 caps for Argentina, is also eager to showcase his abilities ahead of the 2018 World Cup.
"I have to win my place back in the team so that (Argentina) coach Jorge Sampaoli considers me for the World Cup," Rojo added.
"I have been out a while but I am determined to get back into the national team. I want to show Sampaoli how good I am."
United host 11th-placed Newcastle United in the league on Saturday.
(Reporting by Aditi Prakash in Bengaluru)
