Former-Manchester United goalkeeper Mark Bosnich says Sir Alex Ferguson must choose David De Gea or Andreas Lindegaard as his number one - or risk United's defensive troubles continuing.
Ferguson criticised his defence after they conceded another early goal in the Champions League last night. The United boss urged his side to cut out the mistakes that led to them falling behind against Southampton and Tottenham, but the Romanians took a 14th minute lead before Robin Van Persie rescued the points.
But Bosnich believes Ferguson would help his defence be choosing a number one goalkeeper and sticking with him.
"The goalkeeping situation is one they have to sort out very soon," Bosnich told talkSPORT. "We saw it last season, he was swapping Lindegaard and De Gea up until Christmas. This season he is doing the same."
Ferguson has rotated his two keepers so far, and United have continued to look uncharacteristically shaky at the back. Last weekend's defeat to Spurs saw Lindegaard concede three at Old Trafford as United went down 3-2 in the Premier League.
Bosnich continued: "From a defensive stability point of view, it is imperative you keep playing the same back four and goalkeeper as much as you possibly can.
"That continuity, that understanding that you develop as a goalkeeper with you defenders, is priceless.
"The sooner he makes the decision, whether it be Lindegaard or De Gea, the better it will be for that defensive unit."
Ferguson recalled De Gea for the match against Cluj, and the young Spaniard made a crucial late save to keep United in front.
And Ferguson opted to retain the same back four that shipped three goals at home to Tottenham. Rafael, Patrice Evra, Rio Ferdinand and Jonny Evans kept their places, but Ferguson branded Cluj's goal an "absolutely shocker" from a defensive point of view.
Evans limped off towards the end of the match in Romania, and is now a doubt for Sunday's game in Newcastle.
With Nemanja Vidic also out injured, Ferguson may have to turn to academy graduate Scott Wootton, who made his Champions League debut from the substitutes bench this week in Romania.