Former Manchester United defender John O'Shea believes Andre Onana will still get the chance to show "what a quality keeper he can be" in the remaining weeks of the season.
Onana was at fault for both goals conceded in his side's 2-2 draw with Lyon in the Europa League on Thursday.
His performance came a day after the former Ajax man was labelled "one of the worst goalkeepers in the club's history" by Lyon midfielder Nemanja Matic, who spent five seasons at Old Trafford between 2017-2022.
"The chance will be there for Andre to show what a quality keeper he can be," O'Shea told BBC NI. "Players are going to have little mistakes now and again, but let's see what happens in the next game.
"You have to front up every time there's a challenge at Manchester United, you have to show your qualities then."
United travel to Newcastle United on Sunday (16:30 BST), with their only hope of qualifying for next season's Champions League being to win the Europa League.
They host Lyon at Old Trafford in the second leg of their quarter-final on Thursday (20:00 BST).
"I'm sure the Manchester United fanbase probably have a bit of frustration at the minute, but they could potentially be in a European final in a couple of weeks' time with a bit of luck," added O'Shea, who is currently assistant coach with Republic of Ireland.
"Manchester United, without a doubt, will be challenging for trophies again in the future, but it's going to take a bit of time, it's going to take a bit of patience."
