On Friday night, Cameroon defeated Mauritius 3-0 in World Cup qualification, and Onana was substituted off after 81 minutes.
With the United starting goalkeeper getting the start, the win was completed by goals from Bryan Mbeumo, Georges-Kevin N’Koudou, and Frank Magri.
Onana, a 27-year-old, seemed to hurt his adductor muscle when he extended his leg late in the game, but he dove along the ground to watch a shot go beyond the post.
After four minutes of treatment on the field, he was brought to his feet and was able to walk unassisted back to the dugout.
His availability for Tuesday’s match against Libya is uncertain, however Cameroon are scheduled to play nonetheless.
Following that, on Sunday, United will play Everton, the first in a difficult month of games that also includes Premier League matches against Aston Villa, Chelsea, Liverpool, and Newcastle City.
And that doesn’t even include the crucial Champions League matches against Bayern Munich and Galatasaray.
According to many sources, Onana will also be in action at Goodison Park, adding to the fact that he has appeared in every game for the Red Devils since his £47 million summer transfer to Old Trafford.
First, according to Fabrizio Romano, Onana is anticipated to be fit to play for United despite a shoulder injury that doesn’t seem serious, according to Onana’s agent.