De Gea made way for Sergio Romero in last season’s run to Europa League glory but Jose Mourinho does not plan to have a cup keeper this term.
Mourinho said: ”He is doing really well and is very confident.
“I’ll go with him again tomorrow."
Eric Bailly and Phil Jones are suspended so Chris Smalling will partner Victor Lindelof at the back.
United are heavy favourites to beat Swiss champions Basel and Mourinho is in buoyant mood.
He said: “We’re strong, playing well and have confidence in ourselves.
“It’s a difficult game tomorrow but we have the quality to win.”
Mourinho added: “Being back in the Champions League is going back to the natural habitat.
“Manchester United [have been there] season after season.
“For some players there’s the motivation of playing in it for the first time, so we look forward to the match and I hope also Old Trafford feels it in the same way we are feeling.”
